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142 Commits

Author SHA1 Message Date
Lance Release
60260018cf [python] Bump version: 0.4.0 → 0.4.1 2023-12-26 16:51:16 +00:00
Lance Release
bb100c5c19 Bump version: 0.4.0 → 0.4.1 2023-12-26 16:51:09 +00:00
elliottRobinson
eab9072bb5 Update default_embedding_functions.md (#744)
Modify some grammar, punctuation, and spelling errors.
2023-12-26 19:24:22 +05:30
Will Jones
ee0f0611d9 docs: update node API reference (#734)
This command hasn't been run for a while...
2023-12-22 10:14:31 -08:00
Will Jones
34966312cb docs: enhance Update user guide (#735)
Closes #705
2023-12-22 10:14:21 -08:00
Bert
756188358c docs: fix JS api docs for update method (#738) 2023-12-21 13:48:00 -05:00
Weston Pace
dc5126d8d1 feat: add the ability to create scalar indices (#679)
This is a pretty direct binding to the underlying lance capability
2023-12-21 09:50:10 -08:00
Aidan
50c20af060 feat: node list tables pagination (#733) 2023-12-21 11:37:19 -05:00
Chang She
0965d7dd5a doc(javascript): minor improvement on docs for working with tables (#736)
Closes #639 
Closes #638
2023-12-20 20:05:22 -08:00
Chang She
7bbb2872de bug(python): fix path handling in windows (#724)
Use pathlib for local paths so that pathlib
can handle the correct separator on windows.

Closes #703

---------

Co-authored-by: Will Jones <willjones127@gmail.com>
2023-12-20 15:41:36 -08:00
Will Jones
e81d2975da chore: add issue templates (#732)
This PR adds issue templates, which help two recurring issues:

* Users forget to tell us whether they are using the Node or Python SDK
* Issues don't get appropriate tags

This doesn't force the use of the templates. Because we set
`blank_issues_enabled: true`, users can still create a custom issue.
2023-12-20 15:15:24 -08:00
Will Jones
2c7f96ba4f ci: check formatting and clippy (#730) 2023-12-20 13:37:51 -08:00
Will Jones
f9dd7a5d8a fix: prevent duplicate data in FTS index (#728)
This forces the user to replace the whole FTS directory when re-creating
the index, prevent duplicate data from being created. Previously, the
whole dataset was re-added to the existing index, duplicating existing
rows in the index.

This (in combination with lancedb/lance#1707) caused #726, since the
duplicate data emitted duplicate indices for `take()` and an upstream
issue caused those queries to fail.

This solution isn't ideal, since it makes the FTS index temporarily
unavailable while the index is built. In the future, we should have
multiple FTS index directories, which would allow atomic commits of new
indexes (as well as multiple indexes for different columns).

Fixes #498.
Fixes #726.

---------

Co-authored-by: Chang She <759245+changhiskhan@users.noreply.github.com>
2023-12-20 13:07:07 -08:00
Will Jones
1d4943688d upgrade lance to v0.9.1 (#727)
This brings in some important bugfixes related to take and aarch64
Linux. See changes at:
https://github.com/lancedb/lance/releases/tag/v0.9.1
2023-12-20 13:06:54 -08:00
Chang She
7856a94d2c feat(python): support nested reference for fts (#723)
https://github.com/lancedb/lance/issues/1739

Support nested field reference in full text search

---------

Co-authored-by: Will Jones <willjones127@gmail.com>
2023-12-20 12:28:53 -08:00
Chang She
371d2f979e feat(python): add option to flatten output in to_pandas (#722)
Closes https://github.com/lancedb/lance/issues/1738

We add a `flatten` parameter to the signature of `to_pandas`. By default
this is None and does nothing.
If set to True or -1, then LanceDB will flatten structs before
converting to a pandas dataframe. All nested structs are also flattened.
If set to any positive integer, then LanceDB will flatten structs up to
the specified level of nesting.

---------

Co-authored-by: Weston Pace <weston.pace@gmail.com>
2023-12-20 12:23:07 -08:00
Aidan
fff8e399a3 feat: Node create index API (#720) 2023-12-20 15:22:35 -05:00
Aidan
73e4015797 feat: Node Schema API (#717) 2023-12-20 12:16:40 -05:00
Lance Release
5142a27482 Updating package-lock.json 2023-12-18 18:15:50 +00:00
Lance Release
81df2a524e Updating package-lock.json 2023-12-18 17:29:58 +00:00
Lance Release
40638e5515 Bump version: 0.3.11 → 0.4.0 2023-12-18 17:29:47 +00:00
Lance Release
018314a5c1 [python] Bump version: 0.3.6 → 0.4.0 2023-12-18 17:27:26 +00:00
Lei Xu
409eb30ea5 chore: bump lance version to 0.9 (#715) 2023-12-17 22:11:42 -05:00
Lance Release
ff9872fd44 Updating package-lock.json 2023-12-15 18:25:06 +00:00
Lance Release
a0608044a1 [python] Bump version: 0.3.5 → 0.3.6 2023-12-15 18:20:55 +00:00
Lance Release
2e4ea7d2bc Updating package-lock.json 2023-12-15 18:01:45 +00:00
Lance Release
57e5695a54 Bump version: 0.3.10 → 0.3.11 2023-12-15 18:01:34 +00:00
Bert
ce58ea7c38 chore: fix package lock (#711) 2023-12-15 11:49:16 -05:00
Bert
57207eff4a implement update for remote clients (#706) 2023-12-15 09:06:40 -05:00
Rob Meng
2d78bff120 feat: pass vector column name to remote backend (#710)
pass vector column name to remote as well.

`vector_column` is already part of `Query` just declearing it as part to
`remote.VectorQuery` as well
2023-12-15 00:19:08 -05:00
Rob Meng
7c09b9b9a9 feat: allow custom column name in query (#709) 2023-12-14 23:29:26 -05:00
Chang She
bd0034a157 feat: support nested pydantic schema (#707) 2023-12-14 18:20:45 -08:00
Will Jones
144b3b5d83 ci: fix broken npm publication (#704)
Most recent release failed because `release` depends on `node-macos`,
but we renamed `node-macos` to `node-macos-{x86,arm64}`. This fixes that
by consolidating them back to a single `node-macos` job, which also has
the side effect of making the file shorter.
2023-12-14 12:09:28 -08:00
Lance Release
b6f0a31686 Updating package-lock.json 2023-12-14 19:31:56 +00:00
Lance Release
9ec526f73f Bump version: 0.3.9 → 0.3.10 2023-12-14 19:31:41 +00:00
Lance Release
600bfd7237 [python] Bump version: 0.3.4 → 0.3.5 2023-12-14 19:31:22 +00:00
Will Jones
d087e7891d feat(python): add update query support for Python (#654)
Closes #69

Will not pass until https://github.com/lancedb/lance/pull/1585 is
released
2023-12-14 11:28:32 -08:00
Chang She
098e397cf0 feat: LocalTable for vectordb now supports filters without vector search (#693)
Note this currently the filter/where is only implemented for LocalTable
so that it requires an explicit cast to "enable" (see new unit test).
The alternative is to add it to the Table interface, but since it's not
available on RemoteTable this may cause some user experience issues.
2023-12-13 22:59:01 -08:00
Bert
63ee8fa6a1 Update in Node & Rust (#696)
Co-authored-by: Will Jones <willjones127@gmail.com>
2023-12-13 14:53:06 -05:00
Ayush Chaurasia
693091db29 chore(python): Reduce posthog event count (#661)
- Register open_table as event 
- Because we're dropping 'seach' event currently, changed the name to
'search_table' and introduced throttling
- Throttled events will be counted once per time batch so that the user
is registered but event count doesn't go up by a lot
2023-12-08 11:00:51 -08:00
Ayush Chaurasia
dca4533dbe docs: Update roboflow tutorial position (#666) 2023-12-08 11:00:11 -08:00
QianZhu
f6bbe199dc Qian/minor fix doc (#695) 2023-12-08 09:58:53 -08:00
Kaushal Kumar Choudhary
366e522c2b docs: Add badges (#694)
adding some badges
added a gif to readme for the vectordb repo

---------

Co-authored-by: kaushal07wick <kaushalc6@gmail.com>
2023-12-08 20:55:04 +05:30
Chang She
244b6919cc chore: Use m1 runner for npm publish (#687)
We had some build issues with npm publish for cross-compiling arm64
macos on an x86 macos runner. Switching to m1 runner for now until
someone has time to deal with the feature flags.

follow-up tracked here: #688
2023-12-07 15:49:52 -08:00
QianZhu
aca785ff98 saas python sdk doc (#692)
<img width="256" alt="Screenshot 2023-12-07 at 11 55 41 AM"
src="https://github.com/lancedb/lancedb/assets/1305083/259bf234-9b3b-4c5d-af45-c7f3fada2cc7">
2023-12-07 14:47:56 -08:00
Chang She
bbdebf2c38 chore: update package lock (#689) 2023-12-06 17:14:56 -08:00
Chang She
1336cce0dc chore: set error handling to immediate (#686)
there's build failure for the rust artifact but the macos arm64 build
for npm publish still passed. So we had a silent failure for 2 releases.
By setting error to immediate this should cause fail immediately.
2023-12-06 14:20:46 -08:00
Lance Release
6c83b6a513 Updating package-lock.json 2023-12-04 18:34:43 +00:00
Lance Release
6bec4bec51 Updating package-lock.json 2023-12-04 17:02:48 +00:00
Lance Release
23d30dfc78 Bump version: 0.3.8 → 0.3.9 2023-12-04 17:02:35 +00:00
Rob Meng
94c8c50f96 fix: fix passing prefilter flag to remote client (#677)
was passing this at the wrong position
2023-12-04 12:01:16 -05:00
Rob Meng
72765d8e1a feat: enable prefilter in node js (#675)
enable prefiltering in node js, both native and remote
2023-12-01 16:49:10 -05:00
Rob Meng
a2a8f9615e chore: expose prefilter in lancedb rust (#674)
expose prefilter flag in vectordb rust code.
2023-12-01 00:44:14 -05:00
James
b085d9aaa1 (docs):Add CLIP image embedding example (#660)
In this PR, I add a guide that lets you use Roboflow Inference to
calculate CLIP embeddings for use in LanceDB. This post was reviewed by
@AyushExel.
2023-11-27 20:39:01 +05:30
Bert
6eb662de9b fix: python remote correct open_table error message (#659) 2023-11-24 19:28:33 -05:00
Lance Release
2bb2bb581a Updating package-lock.json 2023-11-19 00:45:51 +00:00
Lance Release
38321fa226 [python] Bump version: 0.3.3 → 0.3.4 2023-11-19 00:24:01 +00:00
Lance Release
22749c3fa2 Updating package-lock.json 2023-11-19 00:04:08 +00:00
Lance Release
123a49df77 Bump version: 0.3.7 → 0.3.8 2023-11-19 00:03:58 +00:00
Will Jones
a57aa4b142 chore: upgrade lance to v0.8.17 (#656)
Readying for the next Lance release.
2023-11-18 15:57:23 -08:00
Rok Mihevc
d8e3e54226 feat(python): expose index cache size (#655)
This is to enable https://github.com/lancedb/lancedb/issues/641.
Should be merged after https://github.com/lancedb/lance/pull/1587 is
released.
2023-11-18 14:17:40 -08:00
Ayush Chaurasia
ccfdf4853a [Docs]: Add Instructor embeddings and rate limit handler docs (#651) 2023-11-18 06:08:26 +05:30
Ayush Chaurasia
87e5d86e90 [Docs][SEO] Add sitemap and robots.txt (#645)
Sitemap improves SEO by ranking pages and tracking updates.
2023-11-18 06:08:13 +05:30
Aidan
1cf8a3e4e0 SaaS create_index API (#649) 2023-11-15 19:12:52 -05:00
Lance Release
5372843281 Updating package-lock.json 2023-11-15 03:15:10 +00:00
Lance Release
54677b8f0b Updating package-lock.json 2023-11-15 02:42:38 +00:00
Lance Release
ebcf9bf6ae Bump version: 0.3.6 → 0.3.7 2023-11-15 02:42:25 +00:00
Bert
797514bcbf fix: node remote implement table.countRows (#648) 2023-11-13 17:43:20 -05:00
Rok Mihevc
1c872ce501 feat: add RemoteTable.version in Python (#644)
Please note: this is not tested as we don't have a server here and
testing against a mock object wouldn't be that interesting.
2023-11-13 21:43:48 +01:00
Bert
479f471c14 fix: node send db header for GET requests (#646) 2023-11-11 16:33:25 -05:00
Ayush Chaurasia
ae0d2f2599 fix: Pydantic 1.x compat for weak_lru caching in embeddings API (#643)
Colab has pydantic 1.x by default and pydantic 1.x BaseModel objects
don't support weakref creation by default that we use to cache embedding
models
https://github.com/lancedb/lancedb/blob/main/python/lancedb/embeddings/utils.py#L206
. It needs to be added to slot.
2023-11-10 15:02:38 +05:30
Ayush Chaurasia
1e8678f11a Multi-task instructor model with quantization support & weak_lru cache for embedding function models (#612)
resolves #608
2023-11-09 12:34:18 +05:30
QianZhu
662968559d fix saas open_table and table_names issues (#640)
- added check whether a table exists in SaaS open_table
- remove prefilter not supported warning in SaaS search
- fixed issues for SaaS table_names
2023-11-07 17:34:38 -08:00
Rob Meng
9d895801f2 upgrade lance to 0.8.14 (#636)
upgrade lance
2023-11-07 19:01:29 -05:00
Rob Meng
80613a40fd skip missing file on mirrored dir when deleting (#635)
mirrored store is not garueeteed to have all the files. Ignore the ones
that doesn't exist.
2023-11-07 12:33:32 -05:00
Lei Xu
d43ef7f11e chore: apple silicon runner (#633)
Close #632
2023-11-06 21:04:32 -08:00
Lei Xu
554e068917 chore: improve create_table API consistency between local and remote SDK (#627) 2023-11-03 13:15:11 -07:00
Bert
567734dd6e fix: node remote connection handles non http errors (#624)
https://github.com/lancedb/lancedb/issues/623

Fixes issue trying to print response status when using remote client. If
the error is not an HTTP error (e.g. dns/network failure), there won't
be a response.
2023-11-03 10:24:56 -04:00
Ayush Chaurasia
1589499f89 Exponential standoff retry support for handling rate limited embedding functions (#614)
Users ingesting data using rate limited apis don't need to manually make
the process sleep for counter rate limits
resolves #579
2023-11-02 19:20:10 +05:30
Lance Release
682e95fa83 Updating package-lock.json 2023-11-01 22:20:49 +00:00
Lance Release
1ad5e7f2f0 Updating package-lock.json 2023-11-01 21:16:20 +00:00
Lance Release
ddb3ef4ce5 Bump version: 0.3.5 → 0.3.6 2023-11-01 21:16:06 +00:00
Lance Release
ef20b2a138 [python] Bump version: 0.3.2 → 0.3.3 2023-11-01 21:15:55 +00:00
Lei Xu
2e0f251bfd chore: bump lance to 8.10 (#622) 2023-11-01 14:14:38 -07:00
Ayush Chaurasia
2cb91e818d Disable posthog on docs & reduce sentry trace factor (#607)
- posthog charges per event and docs events are registered very
frequently. We can keep tracking them on GA
- Reduced sentry trace factor
2023-11-02 01:13:16 +05:30
Chang She
2835c76336 doc: node sdk now supports windows (#616) 2023-11-01 10:04:18 -07:00
Bert
8068a2bbc3 ci: cancel in progress runs on new push (#620) 2023-11-01 11:33:48 -04:00
Bert
24111d543a fix!: sort table names (#619)
https://github.com/lancedb/lance/issues/1385
2023-11-01 10:50:09 -04:00
QianZhu
7eec2b8f9a Qian/query option doc (#615)
- API documentation improvement for queries (table.search)
- a small bug fix for the remote API on create_table

![image](https://github.com/lancedb/lancedb/assets/1305083/712e9bd3-deb8-4d81-8cd0-d8e98ef68f4e)

![image](https://github.com/lancedb/lancedb/assets/1305083/ba22125a-8c36-4e34-a07f-e39f0136e62c)
2023-10-31 19:50:05 -07:00
Will Jones
b2b70ea399 increment pylance (#618) 2023-10-31 18:07:03 -07:00
Bert
e50a3c1783 added api docs for prefilter flag (#617)
Added the prefilter flag argument to the `LanceQueryBuilder.where`.

This should make it display here:

https://lancedb.github.io/lancedb/python/python/#lancedb.query.LanceQueryBuilder.select

And also in intellisense like this:
<img width="848" alt="image"
src="https://github.com/lancedb/lancedb/assets/5846846/e0c53f4f-96bc-411b-9159-680a6c4d0070">

Also adds some improved documentation about the `where` argument to this
method.

---------

Co-authored-by: Weston Pace <weston.pace@gmail.com>
2023-10-31 16:39:32 -04:00
Weston Pace
b517134309 feat: allow prefiltering with index (#610)
Support for prefiltering with an index was added in lance version 0.8.7.
We can remove the lancedb check that prevents this. Closes #261
2023-10-31 13:11:03 -07:00
Lei Xu
6fb539b5bf doc: add doc to use GPU for indexing (#611) 2023-10-30 15:25:00 -07:00
Lance Release
f37fe120fd Updating package-lock.json 2023-10-26 22:30:16 +00:00
Lance Release
2e115acb9a Updating package-lock.json 2023-10-26 21:48:01 +00:00
Lance Release
27a638362d Bump version: 0.3.4 → 0.3.5 2023-10-26 21:47:44 +00:00
Bert
22a6695d7a fix conv version (#605) 2023-10-26 17:44:11 -04:00
Lance Release
57eff82ee7 Updating package-lock.json 2023-10-26 21:03:07 +00:00
Lance Release
7732f7d41c Bump version: 0.3.3 → 0.3.4 2023-10-26 21:02:52 +00:00
Bert
5ca98c326f feat: added dataset stats api to node (#604) 2023-10-26 17:00:48 -04:00
Bert
b55db397eb feat: added data stats apis (#596) 2023-10-26 13:10:17 -04:00
Rob Meng
c04d72ac8a expose remap index api (#603)
expose index remap options in `compact_files`
2023-10-25 22:10:37 -04:00
Rob Meng
28b02fb72a feat: expose optimize index api (#602)
expose `optimize_index` api.
2023-10-25 19:40:23 -04:00
Lance Release
f3cf986777 [python] Bump version: 0.3.1 → 0.3.2 2023-10-24 19:06:38 +00:00
Bert
c73fcc8898 update lance to 0.8.7 (#598) 2023-10-24 14:49:36 -04:00
Chang She
cd9debc3b7 fix(python): fix multiple embedding functions bug (#597)
Closes #594

The embedding functions are pydantic models so multiple instances with
the same parameters are considered ==, which means that if you have
multiple embedding columns it's possible for the embeddings to get
overwritten. Instead we use `is` instead of == to avoid this problem.

testing: modified unit test to include this case
2023-10-24 13:05:05 -04:00
Rob Meng
26a97ba997 feat: add checkout method to table to reuse existing store and connections (#593)
Prior to this PR, to get a new version of a table, we need to re-open
the table. This has a few downsides w.r.t. performance:
* Object store is recreated, which takes time and throws away existing
warm connections
* Commit handler is thrown aways as well, which also may contain warm
connections
2023-10-23 12:06:13 -04:00
Rob Meng
ce19fedb08 feat: include manifest files in mirrow store (#589) 2023-10-21 12:21:41 -04:00
Will Jones
14e8e48de2 Revert "[python] Bump version: 0.3.2 → 0.3.3"
This reverts commit c30faf6083.
2023-10-20 17:52:49 -07:00
Will Jones
c30faf6083 [python] Bump version: 0.3.2 → 0.3.3 2023-10-20 17:30:00 -07:00
Ayush Chaurasia
64a4f025bb [Docs]: Minor Fixes (#587)
* Filename typo
* Remove rick_morty csv as users won't really be able to use it.. We can
create a an executable colab and download it from a bucket or smth.
2023-10-20 16:14:35 +02:00
Ayush Chaurasia
6dc968e7d3 [Docs] Embeddings API: Add multi-lingual semantic search example (#582) 2023-10-20 18:40:49 +05:30
Ayush Chaurasia
06b5b69f1e [Docs]Versioning docs (#586)
closes #564

---------

Co-authored-by: Chang She <chang@lancedb.com>
2023-10-20 18:40:16 +05:30
Lance Release
6bd3a838fc Updating package-lock.json 2023-10-19 20:45:39 +00:00
Lance Release
f36fea8f20 Updating package-lock.json 2023-10-19 20:06:10 +00:00
Lance Release
0a30591729 Bump version: 0.3.2 → 0.3.3 2023-10-19 20:05:57 +00:00
Chang She
0ed39b6146 chore: bump lance version in python/rust lancedb (#584)
To include latest v0.8.6

Co-authored-by: Chang She <chang@lancedb.com>
2023-10-19 13:05:12 -07:00
Ayush Chaurasia
a8c7f80073 [Docs] Update embedding function docs (#581) 2023-10-18 13:04:42 +05:30
Ayush Chaurasia
0293bbe142 [Python]Embeddings API refactor (#580)
Sets things up for this -> https://github.com/lancedb/lancedb/issues/579
- Just separates out the registry/ingestion code from the function
implementation code
- adds a `get_registry` util
- package name "open-clip" -> "open-clip-torch"
2023-10-17 22:32:19 -07:00
Ayush Chaurasia
7372656369 [Docs] Add posthog telemetry to docs (#577)
Allows creation of funnels and user journeys
2023-10-17 21:11:59 -07:00
QianZhu
d46bc5dd6e list table pagination draft (#574) 2023-10-16 21:09:20 -07:00
Prashanth Rao
86efb11572 Add pyarrow date and timestamp type conversion from pydantic (#576) 2023-10-16 19:42:24 -07:00
Chang She
bb01ad5290 doc: fix broken link and add README (#573)
Fix broken link to embedding functions

testing: broken link was verified after local docs build to have been
repaired

---------

Co-authored-by: Chang She <chang@lancedb.com>
2023-10-16 16:13:07 -07:00
Lance Release
1b8cda0941 Updating package-lock.json 2023-10-16 16:10:07 +00:00
Lance Release
bc85a749a3 Updating package-lock.json 2023-10-16 15:12:15 +00:00
Lance Release
02c35d3457 Bump version: 0.3.1 → 0.3.2 2023-10-16 15:11:57 +00:00
Rob Meng
345c136cfb implement remote api calls for table mutation (#567)
Add more APIs to remote table for Node SDK
* `add` rows
* `overwrite` table with rows
* `create` table

This has been tested against dev stack
2023-10-16 11:07:58 -04:00
Rok Mihevc
043e388254 docs: show source of documented functions (#569) 2023-10-15 09:05:36 -07:00
Lei Xu
fe64fc4671 feat(python,js): deletion operation on remote tables (#568) 2023-10-14 15:47:19 -07:00
Rok Mihevc
6d66404506 docs: switch python examples to be row based (#554) 2023-10-14 14:07:43 -07:00
Lei Xu
eff94ecea8 chore: bump lance to 0.8.5 (#561)
Bump lance to 0.5.8
2023-10-14 12:38:43 -07:00
Ayush Chaurasia
7dfb555fea [DOCS][PYTHON] Update embeddings API docs & Example (#516)
This PR adds an overview of embeddings docs:
- 2 ways to vectorize your data using lancedb - explicit & implicit
- explicit - manually vectorize your data using `wit_embedding` function
- Implicit - automatically vectorize your data as it comes by ingesting
your embedding function details as table metadata
- Multi-modal example w/ disappearing embedding function
2023-10-14 07:56:07 +05:30
Lance Release
f762a669e7 Updating package-lock.json 2023-10-13 22:27:48 +00:00
Lance Release
0bdc7140dd Updating package-lock.json 2023-10-13 21:24:05 +00:00
Lance Release
8f6e955b24 Bump version: 0.3.0 → 0.3.1 2023-10-13 21:23:54 +00:00
Lance Release
1096da09da [python] Bump version: 0.3.0 → 0.3.1 2023-10-13 21:23:47 +00:00
Ayush Chaurasia
683824f1e9 Add cohere embedding function (#550) 2023-10-13 16:27:34 +05:30
Will Jones
db7bdefe77 feat: cleanup and compaction (#518)
#488
2023-10-11 12:49:12 -07:00
Ayush Chaurasia
e41894b071 [Docs] Improve visibility of table ops (#553)
A little verbose, but better than being non-discoverable 
![Screenshot from 2023-10-11
16-26-02](https://github.com/lancedb/lancedb/assets/15766192/9ba539a7-0cf8-4d9e-94e7-ce5d37c35df0)
2023-10-11 12:20:46 -07:00
Chang She
e1ae2bcbd8 feat: add to_list and to_pandas api's (#556)
Add `to_list` to return query results as list of python dict (so we're
not too pandas-centric). Closes #555

Add `to_pandas` API and add deprecation warning on `to_df`. Closes #545

Co-authored-by: Chang She <chang@lancedb.com>
2023-10-11 12:18:55 -07:00
Ankur Goyal
ababc3f8ec Use query.limit(..) in README (#543)
If you run the README javascript example in typescript, it complains
that the type of limit is a function and cannot be set to a number.
2023-10-11 11:54:14 -07:00
Ayush Chaurasia
a1377afcaa feat: telemetry, error tracking, CLI & config manager (#538)
Co-authored-by: Lance Release <lance-dev@lancedb.com>
Co-authored-by: Rob Meng <rob.xu.meng@gmail.com>
Co-authored-by: Will Jones <willjones127@gmail.com>
Co-authored-by: Chang She <759245+changhiskhan@users.noreply.github.com>
Co-authored-by: rmeng <rob@lancedb.com>
Co-authored-by: Chang She <chang@lancedb.com>
Co-authored-by: Rok Mihevc <rok@mihevc.org>
2023-10-08 23:11:39 +05:30
476 changed files with 14041 additions and 66397 deletions

12
.bumpversion.cfg Normal file
View File

@@ -0,0 +1,12 @@
[bumpversion]
current_version = 0.4.1
commit = True
message = Bump version: {current_version} → {new_version}
tag = True
tag_name = v{new_version}
[bumpversion:file:node/package.json]
[bumpversion:file:rust/ffi/node/Cargo.toml]
[bumpversion:file:rust/vectordb/Cargo.toml]

View File

@@ -1,57 +0,0 @@
[tool.bumpversion]
current_version = "0.7.0"
parse = """(?x)
(?P<major>0|[1-9]\\d*)\\.
(?P<minor>0|[1-9]\\d*)\\.
(?P<patch>0|[1-9]\\d*)
(?:-(?P<pre_l>[a-zA-Z-]+)\\.(?P<pre_n>0|[1-9]\\d*))?
"""
serialize = [
"{major}.{minor}.{patch}-{pre_l}.{pre_n}",
"{major}.{minor}.{patch}",
]
search = "{current_version}"
replace = "{new_version}"
regex = false
ignore_missing_version = false
ignore_missing_files = false
tag = true
sign_tags = false
tag_name = "v{new_version}"
tag_message = "Bump version: {current_version} → {new_version}"
allow_dirty = true
commit = true
message = "Bump version: {current_version} → {new_version}"
commit_args = ""
[tool.bumpversion.parts.pre_l]
values = ["beta", "final"]
optional_value = "final"
[[tool.bumpversion.files]]
filename = "node/package.json"
search = "\"version\": \"{current_version}\","
replace = "\"version\": \"{new_version}\","
[[tool.bumpversion.files]]
filename = "nodejs/package.json"
search = "\"version\": \"{current_version}\","
replace = "\"version\": \"{new_version}\","
# nodejs binary packages
[[tool.bumpversion.files]]
glob = "nodejs/npm/*/package.json"
search = "\"version\": \"{current_version}\","
replace = "\"version\": \"{new_version}\","
# Cargo files
# ------------
[[tool.bumpversion.files]]
filename = "rust/ffi/node/Cargo.toml"
search = "\nversion = \"{current_version}\""
replace = "\nversion = \"{new_version}\""
[[tool.bumpversion.files]]
filename = "rust/lancedb/Cargo.toml"
search = "\nversion = \"{current_version}\""
replace = "\nversion = \"{new_version}\""

View File

@@ -1,40 +0,0 @@
[profile.release]
lto = "fat"
codegen-units = 1
[profile.release-with-debug]
inherits = "release"
debug = true
# Prioritize compile time over runtime performance
codegen-units = 16
lto = "thin"
[target.'cfg(all())']
rustflags = [
"-Wclippy::all",
"-Wclippy::style",
"-Wclippy::fallible_impl_from",
"-Wclippy::manual_let_else",
"-Wclippy::redundant_pub_crate",
"-Wclippy::string_add_assign",
"-Wclippy::string_add",
"-Wclippy::string_lit_as_bytes",
"-Wclippy::string_to_string",
"-Wclippy::use_self",
"-Dclippy::cargo",
"-Dclippy::dbg_macro",
# not too much we can do to avoid multiple crate versions
"-Aclippy::multiple-crate-versions",
"-Aclippy::wildcard_dependencies",
]
[target.x86_64-unknown-linux-gnu]
rustflags = ["-C", "target-cpu=haswell", "-C", "target-feature=+avx2,+fma,+f16c"]
[target.aarch64-apple-darwin]
rustflags = ["-C", "target-cpu=apple-m1", "-C", "target-feature=+neon,+fp16,+fhm,+dotprod"]
# Not all Windows systems have the C runtime installed, so this avoids library
# not found errors on systems that are missing it.
[target.x86_64-pc-windows-msvc]
rustflags = ["-Ctarget-feature=+crt-static"]

33
.github/labeler.yml vendored
View File

@@ -1,33 +0,0 @@
version: 1
appendOnly: true
# Labels are applied based on conventional commits standard
# https://www.conventionalcommits.org/en/v1.0.0/
# These labels are later used in release notes. See .github/release.yml
labels:
# If the PR title has an ! before the : it will be considered a breaking change
# For example, `feat!: add new feature` will be considered a breaking change
- label: breaking-change
title: "^[^:]+!:.*"
- label: breaking-change
body: "BREAKING CHANGE"
- label: enhancement
title: "^feat(\\(.+\\))?!?:.*"
- label: bug
title: "^fix(\\(.+\\))?!?:.*"
- label: documentation
title: "^docs(\\(.+\\))?!?:.*"
- label: performance
title: "^perf(\\(.+\\))?!?:.*"
- label: ci
title: "^ci(\\(.+\\))?!?:.*"
- label: chore
title: "^(chore|test|build|style)(\\(.+\\))?!?:.*"
- label: Python
files:
- "^python\\/.*"
- label: Rust
files:
- "^rust\\/.*"
- label: typescript
files:
- "^node\\/.*"

View File

@@ -1,41 +0,0 @@
{
"ignore_labels": ["chore"],
"pr_template": "- ${{TITLE}} by @${{AUTHOR}} in ${{URL}}",
"categories": [
{
"title": "## 🏆 Highlights",
"labels": ["highlight"]
},
{
"title": "## 🛠 Breaking Changes",
"labels": ["breaking-change"]
},
{
"title": "## ⚠️ Deprecations ",
"labels": ["deprecation"]
},
{
"title": "## 🎉 New Features",
"labels": ["enhancement"]
},
{
"title": "## 🐛 Bug Fixes",
"labels": ["bug"]
},
{
"title": "## 📚 Documentation",
"labels": ["documentation"]
},
{
"title": "## 🚀 Performance Improvements",
"labels": ["performance"]
},
{
"title": "## Other Changes"
},
{
"title": "## 🔧 Build and CI",
"labels": ["ci"]
}
]
}

View File

@@ -1,63 +0,0 @@
# We create a composite action to be re-used both for testing and for releasing
name: build-linux-wheel
description: "Build a manylinux wheel for lance"
inputs:
python-minor-version:
description: "8, 9, 10, 11, 12"
required: true
args:
description: "--release"
required: false
default: ""
arm-build:
description: "Build for arm64 instead of x86_64"
# Note: this does *not* mean the host is arm64, since we might be cross-compiling.
required: false
default: "false"
manylinux:
description: "The manylinux version to build for"
required: false
default: "2_17"
runs:
using: "composite"
steps:
- name: CONFIRM ARM BUILD
shell: bash
run: |
echo "ARM BUILD: ${{ inputs.arm-build }}"
- name: Build x86_64 Manylinux wheel
if: ${{ inputs.arm-build == 'false' }}
uses: PyO3/maturin-action@v1
with:
command: build
working-directory: python
target: x86_64-unknown-linux-gnu
manylinux: ${{ inputs.manylinux }}
args: ${{ inputs.args }}
before-script-linux: |
set -e
yum install -y openssl-devel \
&& curl -L https://github.com/protocolbuffers/protobuf/releases/download/v24.4/protoc-24.4-linux-$(uname -m).zip > /tmp/protoc.zip \
&& unzip /tmp/protoc.zip -d /usr/local \
&& rm /tmp/protoc.zip
- name: Build Arm Manylinux Wheel
if: ${{ inputs.arm-build == 'true' }}
uses: PyO3/maturin-action@v1
with:
command: build
working-directory: python
docker-options: "-e PIP_EXTRA_INDEX_URL=https://pypi.fury.io/lancedb/"
target: aarch64-unknown-linux-gnu
manylinux: ${{ inputs.manylinux }}
args: ${{ inputs.args }}
before-script-linux: |
set -e
apt install -y unzip
if [ $(uname -m) = "x86_64" ]; then
PROTOC_ARCH="x86_64"
else
PROTOC_ARCH="aarch_64"
fi
curl -L https://github.com/protocolbuffers/protobuf/releases/download/v24.4/protoc-24.4-linux-$PROTOC_ARCH.zip > /tmp/protoc.zip \
&& unzip /tmp/protoc.zip -d /usr/local \
&& rm /tmp/protoc.zip

View File

@@ -1,26 +0,0 @@
# We create a composite action to be re-used both for testing and for releasing
name: build_wheel
description: "Build a lance wheel"
inputs:
python-minor-version:
description: "8, 9, 10, 11"
required: true
args:
description: "--release"
required: false
default: ""
runs:
using: "composite"
steps:
- name: Install macos dependency
shell: bash
run: |
brew install protobuf
- name: Build wheel
uses: PyO3/maturin-action@v1
with:
command: build
args: ${{ inputs.args }}
docker-options: "-e PIP_EXTRA_INDEX_URL=https://pypi.fury.io/lancedb/"
working-directory: python
interpreter: 3.${{ inputs.python-minor-version }}

View File

@@ -1,34 +0,0 @@
# We create a composite action to be re-used both for testing and for releasing
name: build_wheel
description: "Build a lance wheel"
inputs:
python-minor-version:
description: "8, 9, 10, 11"
required: true
args:
description: "--release"
required: false
default: ""
runs:
using: "composite"
steps:
- name: Install Protoc v21.12
working-directory: C:\
run: |
New-Item -Path 'C:\protoc' -ItemType Directory
Set-Location C:\protoc
Invoke-WebRequest https://github.com/protocolbuffers/protobuf/releases/download/v21.12/protoc-21.12-win64.zip -OutFile C:\protoc\protoc.zip
7z x protoc.zip
Add-Content $env:GITHUB_PATH "C:\protoc\bin"
shell: powershell
- name: Build wheel
uses: PyO3/maturin-action@v1
with:
command: build
args: ${{ inputs.args }}
docker-options: "-e PIP_EXTRA_INDEX_URL=https://pypi.fury.io/lancedb/"
working-directory: python
- uses: actions/upload-artifact@v3
with:
name: windows-wheels
path: python\target\wheels

View File

@@ -1,20 +1,13 @@
name: Cargo Publish
on:
push:
tags-ignore:
# We don't publish pre-releases for Rust. Crates.io is just a source
# distribution, so we don't need to publish pre-releases.
- 'v*-beta*'
- '*-v*' # for example, python-vX.Y.Z
release:
types: [ published ]
env:
# This env var is used by Swatinem/rust-cache@v2 for the cache
# key, so we set it to make sure it is always consistent.
CARGO_TERM_COLOR: always
# Up-to-date compilers needed for fp16kernels.
CC: gcc-12
CXX: g++-12
jobs:
build:
@@ -23,7 +16,7 @@ jobs:
# Only runs on tags that matches the make-release action
if: startsWith(github.ref, 'refs/tags/v')
steps:
- uses: actions/checkout@v4
- uses: actions/checkout@v3
- uses: Swatinem/rust-cache@v2
with:
workspaces: rust
@@ -33,4 +26,4 @@ jobs:
sudo apt install -y protobuf-compiler libssl-dev
- name: Publish the package
run: |
cargo publish -p lancedb --all-features --token ${{ secrets.CARGO_REGISTRY_TOKEN }}
cargo publish -p vectordb --all-features --token ${{ secrets.CARGO_REGISTRY_TOKEN }}

View File

@@ -1,81 +0,0 @@
name: PR Checks
on:
pull_request_target:
types: [opened, edited, synchronize, reopened]
concurrency:
group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
cancel-in-progress: true
jobs:
labeler:
permissions:
pull-requests: write
name: Label PR
runs-on: ubuntu-latest
steps:
- uses: srvaroa/labeler@master
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
commitlint:
permissions:
pull-requests: write
name: Verify PR title / description conforms to semantic-release
runs-on: ubuntu-latest
steps:
- uses: actions/setup-node@v3
with:
node-version: "18"
# These rules are disabled because Github will always ensure there
# is a blank line between the title and the body and Github will
# word wrap the description field to ensure a reasonable max line
# length.
- run: npm install @commitlint/config-conventional
- run: >
echo 'module.exports = {
"rules": {
"body-max-line-length": [0, "always", Infinity],
"footer-max-line-length": [0, "always", Infinity],
"body-leading-blank": [0, "always"]
}
}' > .commitlintrc.js
- run: npx commitlint --extends @commitlint/config-conventional --verbose <<< $COMMIT_MSG
env:
COMMIT_MSG: >
${{ github.event.pull_request.title }}
${{ github.event.pull_request.body }}
- if: failure()
uses: actions/github-script@v6
with:
script: |
const message = `**ACTION NEEDED**
Lance follows the [Conventional Commits specification](https://www.conventionalcommits.org/en/v1.0.0/) for release automation.
The PR title and description are used as the merge commit message.\
Please update your PR title and description to match the specification.
For details on the error please inspect the "PR Title Check" action.
`
// Get list of current comments
const comments = await github.paginate(github.rest.issues.listComments, {
owner: context.repo.owner,
repo: context.repo.repo,
issue_number: context.issue.number
});
// Check if this job already commented
for (const comment of comments) {
if (comment.body === message) {
return // Already commented
}
}
// Post the comment about Conventional Commits
github.rest.issues.createComment({
owner: context.repo.owner,
repo: context.repo.repo,
issue_number: context.issue.number,
body: message
})
core.setFailed(message)

View File

@@ -24,16 +24,12 @@ jobs:
environment:
name: github-pages
url: ${{ steps.deployment.outputs.page_url }}
runs-on: buildjet-8vcpu-ubuntu-2204
runs-on: ubuntu-22.04
steps:
- name: Checkout
uses: actions/checkout@v4
- name: Install dependecies needed for ubuntu
run: |
sudo apt install -y protobuf-compiler libssl-dev
rustup update && rustup default
uses: actions/checkout@v3
- name: Set up Python
uses: actions/setup-python@v5
uses: actions/setup-python@v4
with:
python-version: "3.10"
cache: "pip"
@@ -46,7 +42,7 @@ jobs:
- name: Set up node
uses: actions/setup-node@v3
with:
node-version: 20
node-version: ${{ matrix.node-version }}
cache: 'npm'
cache-dependency-path: node/package-lock.json
- uses: Swatinem/rust-cache@v2
@@ -66,9 +62,8 @@ jobs:
run: |
npx typedoc --plugin typedoc-plugin-markdown --out ../docs/src/javascript src/index.ts
- name: Build docs
working-directory: docs
run: |
PYTHONPATH=. mkdocs build
PYTHONPATH=. mkdocs build -f docs/mkdocs.yml
- name: Setup Pages
uses: actions/configure-pages@v2
- name: Upload artifact
@@ -77,4 +72,4 @@ jobs:
path: "docs/site"
- name: Deploy to GitHub Pages
id: deployment
uses: actions/deploy-pages@v1
uses: actions/deploy-pages@v1

View File

@@ -18,30 +18,26 @@ on:
env:
# Disable full debug symbol generation to speed up CI build and keep memory down
# "1" means line tables only, which is useful for panic tracebacks.
RUSTFLAGS: "-C debuginfo=1 -C target-cpu=haswell -C target-feature=+f16c,+avx2,+fma"
RUSTFLAGS: "-C debuginfo=1"
RUST_BACKTRACE: "1"
jobs:
test-python:
name: Test doc python code
runs-on: "warp-ubuntu-latest-x64-4x"
runs-on: ${{ matrix.os }}
strategy:
matrix:
python-minor-version: [ "11" ]
os: ["ubuntu-22.04"]
steps:
- name: Checkout
uses: actions/checkout@v4
- name: Print CPU capabilities
run: cat /proc/cpuinfo
- name: Install dependecies needed for ubuntu
run: |
sudo apt install -y protobuf-compiler libssl-dev
rustup update && rustup default
uses: actions/checkout@v3
- name: Set up Python
uses: actions/setup-python@v5
uses: actions/setup-python@v4
with:
python-version: 3.11
python-version: 3.${{ matrix.python-minor-version }}
cache: "pip"
cache-dependency-path: "docs/test/requirements.txt"
- name: Rust cache
uses: swatinem/rust-cache@v2
- name: Build Python
working-directory: docs/test
run:
@@ -56,45 +52,42 @@ jobs:
for d in *; do cd "$d"; echo "$d".py; python "$d".py; cd ..; done
test-node:
name: Test doc nodejs code
runs-on: "warp-ubuntu-latest-x64-4x"
timeout-minutes: 60
runs-on: ${{ matrix.os }}
strategy:
fail-fast: false
matrix:
node-version: [ "18" ]
os: ["ubuntu-22.04"]
steps:
- name: Checkout
uses: actions/checkout@v4
uses: actions/checkout@v3
with:
fetch-depth: 0
lfs: true
- name: Print CPU capabilities
run: cat /proc/cpuinfo
- name: Set up Node
uses: actions/setup-node@v4
uses: actions/setup-node@v3
with:
node-version: 20
node-version: ${{ matrix.node-version }}
- name: Install dependecies needed for ubuntu
if: ${{ matrix.os == 'ubuntu-22.04' }}
run: |
sudo apt install -y protobuf-compiler libssl-dev
rustup update && rustup default
- name: Rust cache
uses: swatinem/rust-cache@v2
- name: Install node dependencies
run: |
sudo swapoff -a
sudo fallocate -l 8G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
sudo swapon --show
cd node
cd docs/test
npm install
- name: Rust cache
uses: swatinem/rust-cache@v2
- name: Install LanceDB
run: |
cd docs/test/node_modules/vectordb
npm ci
npm run build-release
cd ../docs
npm install
- name: Test
env:
LANCEDB_URI: ${{ secrets.LANCEDB_URI }}
LANCEDB_DEV_API_KEY: ${{ secrets.LANCEDB_DEV_API_KEY }}
npm run tsc
- name: Create test files
run: |
cd docs
npm t
cd docs/test
node md_testing.js
- name: Test
run: |
cd docs/test/node
for d in *; do cd "$d"; echo "$d".js; node "$d".js; cd ..; done

View File

@@ -1,85 +0,0 @@
name: Build and Run Java JNI Tests
on:
push:
branches:
- main
pull_request:
paths:
- java/**
- rust/**
- .github/workflows/java.yml
env:
# This env var is used by Swatinem/rust-cache@v2 for the cache
# key, so we set it to make sure it is always consistent.
CARGO_TERM_COLOR: always
# Disable full debug symbol generation to speed up CI build and keep memory down
# "1" means line tables only, which is useful for panic tracebacks.
RUSTFLAGS: "-C debuginfo=1"
RUST_BACKTRACE: "1"
# according to: https://matklad.github.io/2021/09/04/fast-rust-builds.html
# CI builds are faster with incremental disabled.
CARGO_INCREMENTAL: "0"
CARGO_BUILD_JOBS: "1"
jobs:
linux-build:
runs-on: ubuntu-22.04
name: ubuntu-22.04 + Java 11 & 17
defaults:
run:
working-directory: ./java
steps:
- name: Checkout repository
uses: actions/checkout@v4
- uses: Swatinem/rust-cache@v2
with:
workspaces: java/core/lancedb-jni
- name: Run cargo fmt
run: cargo fmt --check
working-directory: ./java/core/lancedb-jni
- name: Install dependencies
run: |
sudo apt update
sudo apt install -y protobuf-compiler libssl-dev
- name: Install Java 17
uses: actions/setup-java@v4
with:
distribution: temurin
java-version: 17
cache: "maven"
- run: echo "JAVA_17=$JAVA_HOME" >> $GITHUB_ENV
- name: Install Java 11
uses: actions/setup-java@v4
with:
distribution: temurin
java-version: 11
cache: "maven"
- name: Java Style Check
run: mvn checkstyle:check
# Disable because of issues in lancedb rust core code
# - name: Rust Clippy
# working-directory: java/core/lancedb-jni
# run: cargo clippy --all-targets -- -D warnings
- name: Running tests with Java 11
run: mvn clean test
- name: Running tests with Java 17
run: |
export JAVA_TOOL_OPTIONS="$JAVA_TOOL_OPTIONS \
-XX:+IgnoreUnrecognizedVMOptions \
--add-opens=java.base/java.lang=ALL-UNNAMED \
--add-opens=java.base/java.lang.invoke=ALL-UNNAMED \
--add-opens=java.base/java.lang.reflect=ALL-UNNAMED \
--add-opens=java.base/java.io=ALL-UNNAMED \
--add-opens=java.base/java.net=ALL-UNNAMED \
--add-opens=java.base/java.nio=ALL-UNNAMED \
--add-opens=java.base/java.util=ALL-UNNAMED \
--add-opens=java.base/java.util.concurrent=ALL-UNNAMED \
--add-opens=java.base/java.util.concurrent.atomic=ALL-UNNAMED \
--add-opens=java.base/jdk.internal.ref=ALL-UNNAMED \
--add-opens=java.base/sun.nio.ch=ALL-UNNAMED \
--add-opens=java.base/sun.nio.cs=ALL-UNNAMED \
--add-opens=java.base/sun.security.action=ALL-UNNAMED \
--add-opens=java.base/sun.util.calendar=ALL-UNNAMED \
--add-opens=java.security.jgss/sun.security.krb5=ALL-UNNAMED \
-Djdk.reflect.useDirectMethodHandle=false \
-Dio.netty.tryReflectionSetAccessible=true"
JAVA_HOME=$JAVA_17 mvn clean test

View File

@@ -1,99 +1,59 @@
name: Create release commit
# This workflow increments versions, tags the version, and pushes it.
# When a tag is pushed, another workflow is triggered that creates a GH release
# and uploads the binaries. This workflow is only for creating the tag.
# This script will enforce that a minor version is incremented if there are any
# breaking changes since the last minor increment. However, it isn't able to
# differentiate between breaking changes in Node versus Python. If you wish to
# bypass this check, you can manually increment the version and push the tag.
on:
workflow_dispatch:
inputs:
dry_run:
description: 'Dry run (create the local commit/tags but do not push it)'
required: true
default: false
type: boolean
type:
description: 'What kind of release is this?'
required: true
default: 'preview'
default: "false"
type: choice
options:
- preview
- stable
python:
description: 'Make a Python release'
- "true"
- "false"
part:
description: 'What kind of release is this?'
required: true
default: true
type: boolean
other:
description: 'Make a Node/Rust release'
required: true
default: true
type: boolean
bump-minor:
description: 'Bump minor version'
required: true
default: false
type: boolean
default: 'patch'
type: choice
options:
- patch
- minor
- major
jobs:
make-release:
# Creates tag and GH release. The GH release will trigger the build and release jobs.
bump-version:
runs-on: ubuntu-latest
permissions:
contents: write
steps:
- name: Output Inputs
run: echo "${{ toJSON(github.event.inputs) }}"
- uses: actions/checkout@v4
- name: Check out main
uses: actions/checkout@v3
with:
ref: main
persist-credentials: false
fetch-depth: 0
lfs: true
# It's important we use our token here, as the default token will NOT
# trigger any workflows watching for new tags. See:
# https://docs.github.com/en/actions/using-workflows/triggering-a-workflow#triggering-a-workflow-from-a-workflow
token: ${{ secrets.LANCEDB_RELEASE_TOKEN }}
- name: Set git configs for bumpversion
shell: bash
run: |
git config user.name 'Lance Release'
git config user.email 'lance-dev@lancedb.com'
- name: Set up Python 3.11
uses: actions/setup-python@v5
- name: Set up Python 3.10
uses: actions/setup-python@v4
with:
python-version: "3.11"
- name: Bump Python version
if: ${{ inputs.python }}
working-directory: python
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
python-version: "3.10"
- name: Bump version, create tag and commit
run: |
# Need to get the commit before bumping the version, so we can
# determine if there are breaking changes in the next step as well.
echo "COMMIT_BEFORE_BUMP=$(git rev-parse HEAD)" >> $GITHUB_ENV
pip install bump-my-version PyGithub packaging
bash ../ci/bump_version.sh ${{ inputs.type }} ${{ inputs.bump-minor }} python-v
- name: Bump Node/Rust version
if: ${{ inputs.other }}
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
run: |
pip install bump-my-version PyGithub packaging
bash ci/bump_version.sh ${{ inputs.type }} ${{ inputs.bump-minor }} v $COMMIT_BEFORE_BUMP
- name: Push new version tag
if: ${{ !inputs.dry_run }}
pip install bump2version
bumpversion --verbose ${{ inputs.part }}
- name: Push new version and tag
if: ${{ inputs.dry_run }} == "false"
uses: ad-m/github-push-action@master
with:
# Need to use PAT here too to trigger next workflow. See comment above.
github_token: ${{ secrets.LANCEDB_RELEASE_TOKEN }}
branch: ${{ github.ref }}
branch: main
tags: true
- uses: ./.github/workflows/update_package_lock
if: ${{ !inputs.dry_run && inputs.other }}
if: ${{ inputs.dry_run }} == "false"
with:
github_token: ${{ secrets.GITHUB_TOKEN }}
github_token: ${{ secrets.LANCEDB_RELEASE_TOKEN }}

View File

@@ -18,26 +18,44 @@ concurrency:
env:
# Disable full debug symbol generation to speed up CI build and keep memory down
# "1" means line tables only, which is useful for panic tracebacks.
#
# Use native CPU to accelerate tests if possible, especially for f16
# target-cpu=haswell fixes failing ci build
RUSTFLAGS: "-C debuginfo=1 -C target-cpu=haswell -C target-feature=+f16c,+avx2,+fma"
RUSTFLAGS: "-C debuginfo=1"
RUST_BACKTRACE: "1"
jobs:
lint:
name: Lint
runs-on: ubuntu-22.04
defaults:
run:
shell: bash
working-directory: node
steps:
- uses: actions/checkout@v3
with:
fetch-depth: 0
lfs: true
- uses: actions/setup-node@v3
with:
node-version: 18
cache: 'npm'
cache-dependency-path: node/package-lock.json
- name: Lint
run: |
npm ci
npm run lint
linux:
name: Linux (Node ${{ matrix.node-version }})
timeout-minutes: 30
strategy:
matrix:
node-version: [ "18", "20" ]
node-version: [ "16", "18" ]
runs-on: "ubuntu-22.04"
defaults:
run:
shell: bash
working-directory: node
steps:
- uses: actions/checkout@v4
- uses: actions/checkout@v3
with:
fetch-depth: 0
lfs: true
@@ -54,6 +72,7 @@ jobs:
- name: Build
run: |
npm ci
npm run tsc
npm run build
npm run pack-build
npm install --no-save ./dist/lancedb-vectordb-*.tgz
@@ -69,13 +88,13 @@ jobs:
shell: bash
working-directory: node
steps:
- uses: actions/checkout@v4
- uses: actions/checkout@v3
with:
fetch-depth: 0
lfs: true
- uses: actions/setup-node@v3
with:
node-version: 20
node-version: 18
cache: 'npm'
cache-dependency-path: node/package-lock.json
- uses: Swatinem/rust-cache@v2
@@ -84,6 +103,7 @@ jobs:
- name: Build
run: |
npm ci
npm run tsc
npm run build
npm run pack-build
npm install --no-save ./dist/lancedb-vectordb-*.tgz
@@ -107,15 +127,14 @@ jobs:
AWS_ENDPOINT: http://localhost:4566
# this one is for dynamodb
DYNAMODB_ENDPOINT: http://localhost:4566
ALLOW_HTTP: true
steps:
- uses: actions/checkout@v4
- uses: actions/checkout@v3
with:
fetch-depth: 0
lfs: true
- uses: actions/setup-node@v3
with:
node-version: 20
node-version: 18
cache: 'npm'
cache-dependency-path: node/package-lock.json
- name: start local stack
@@ -138,6 +157,7 @@ jobs:
- name: Build
run: |
npm ci
npm run tsc
npm run build
npm run pack-build
npm install --no-save ./dist/lancedb-vectordb-*.tgz

View File

@@ -1,122 +0,0 @@
name: NodeJS (NAPI)
on:
push:
branches:
- main
pull_request:
paths:
- nodejs/**
- .github/workflows/nodejs.yml
- docker-compose.yml
concurrency:
group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
cancel-in-progress: true
env:
# Disable full debug symbol generation to speed up CI build and keep memory down
# "1" means line tables only, which is useful for panic tracebacks.
RUSTFLAGS: "-C debuginfo=1"
RUST_BACKTRACE: "1"
jobs:
lint:
name: Lint
runs-on: ubuntu-22.04
defaults:
run:
shell: bash
working-directory: nodejs
env:
# Need up-to-date compilers for kernels
CC: gcc-12
CXX: g++-12
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- uses: actions/setup-node@v3
with:
node-version: 20
cache: 'npm'
cache-dependency-path: nodejs/package-lock.json
- uses: Swatinem/rust-cache@v2
- name: Install dependencies
run: |
sudo apt update
sudo apt install -y protobuf-compiler libssl-dev
- name: Lint
run: |
cargo fmt --all -- --check
cargo clippy --all --all-features -- -D warnings
npm ci
npm run lint-ci
linux:
name: Linux (NodeJS ${{ matrix.node-version }})
timeout-minutes: 30
strategy:
matrix:
node-version: [ "18", "20" ]
runs-on: "ubuntu-22.04"
defaults:
run:
shell: bash
working-directory: nodejs
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- uses: actions/setup-node@v3
with:
node-version: ${{ matrix.node-version }}
cache: 'npm'
cache-dependency-path: node/package-lock.json
- uses: Swatinem/rust-cache@v2
- name: Install dependencies
run: |
sudo apt update
sudo apt install -y protobuf-compiler libssl-dev
npm install -g @napi-rs/cli
- name: Build
run: |
npm ci
npm run build
- name: Setup localstack
working-directory: .
run: docker compose up --detach --wait
- name: Test
env:
S3_TEST: "1"
run: npm run test
macos:
timeout-minutes: 30
runs-on: "macos-14"
defaults:
run:
shell: bash
working-directory: nodejs
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- uses: actions/setup-node@v3
with:
node-version: 20
cache: 'npm'
cache-dependency-path: node/package-lock.json
- uses: Swatinem/rust-cache@v2
- name: Install dependencies
run: |
brew install protobuf
npm install -g @napi-rs/cli
- name: Build
run: |
npm ci
npm run build
- name: Test
run: |
npm run test

View File

@@ -1,9 +1,8 @@
name: NPM Publish
on:
push:
tags:
- "v*"
release:
types: [ published ]
jobs:
node:
@@ -16,11 +15,11 @@ jobs:
working-directory: node
steps:
- name: Checkout
uses: actions/checkout@v4
uses: actions/checkout@v3
- uses: actions/setup-node@v3
with:
node-version: 20
cache: "npm"
cache: 'npm'
cache-dependency-path: node/package-lock.json
- name: Install dependencies
run: |
@@ -32,7 +31,7 @@ jobs:
npm run tsc
npm pack
- name: Upload Linux Artifacts
uses: actions/upload-artifact@v4
uses: actions/upload-artifact@v3
with:
name: node-package
path: |
@@ -46,13 +45,13 @@ jobs:
runner: macos-13
- arch: aarch64-apple-darwin
# xlarge is implicitly arm64.
runner: macos-14
runner: macos-13-xlarge
runs-on: ${{ matrix.config.runner }}
# Only runs on tags that matches the make-release action
if: startsWith(github.ref, 'refs/tags/v')
steps:
- name: Checkout
uses: actions/checkout@v4
uses: actions/checkout@v3
- name: Install system dependencies
run: brew install protobuf
- name: Install npm dependencies
@@ -62,41 +61,12 @@ jobs:
- name: Build MacOS native node modules
run: bash ci/build_macos_artifacts.sh ${{ matrix.config.arch }}
- name: Upload Darwin Artifacts
uses: actions/upload-artifact@v4
uses: actions/upload-artifact@v3
with:
name: node-native-darwin-${{ matrix.config.arch }}
name: native-darwin
path: |
node/dist/lancedb-vectordb-darwin*.tgz
nodejs-macos:
strategy:
matrix:
config:
- arch: x86_64-apple-darwin
runner: macos-13
- arch: aarch64-apple-darwin
# xlarge is implicitly arm64.
runner: macos-14
runs-on: ${{ matrix.config.runner }}
# Only runs on tags that matches the make-release action
if: startsWith(github.ref, 'refs/tags/v')
steps:
- name: Checkout
uses: actions/checkout@v4
- name: Install system dependencies
run: brew install protobuf
- name: Install npm dependencies
run: |
cd nodejs
npm ci
- name: Build MacOS native nodejs modules
run: bash ci/build_macos_artifacts_nodejs.sh ${{ matrix.config.arch }}
- name: Upload Darwin Artifacts
uses: actions/upload-artifact@v4
with:
name: nodejs-native-darwin-${{ matrix.config.arch }}
path: |
nodejs/dist/*.node
node-linux:
name: node-linux (${{ matrix.config.arch}}-unknown-linux-gnu
@@ -110,85 +80,20 @@ jobs:
- arch: x86_64
runner: ubuntu-latest
- arch: aarch64
# For successful fat LTO builds, we need a large runner to avoid OOM errors.
runner: warp-ubuntu-latest-arm64-4x
runner: buildjet-4vcpu-ubuntu-2204-arm
steps:
- name: Checkout
uses: actions/checkout@v4
# To avoid OOM errors on ARM, we create a swap file.
- name: Configure aarch64 build
if: ${{ matrix.config.arch == 'aarch64' }}
run: |
free -h
sudo fallocate -l 16G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
echo "/swapfile swap swap defaults 0 0" >> sudo /etc/fstab
# print info
swapon --show
free -h
uses: actions/checkout@v3
- name: Build Linux Artifacts
run: |
bash ci/build_linux_artifacts.sh ${{ matrix.config.arch }}
- name: Upload Linux Artifacts
uses: actions/upload-artifact@v4
uses: actions/upload-artifact@v3
with:
name: node-native-linux-${{ matrix.config.arch }}
name: native-linux
path: |
node/dist/lancedb-vectordb-linux*.tgz
nodejs-linux:
name: nodejs-linux (${{ matrix.config.arch}}-unknown-linux-gnu
runs-on: ${{ matrix.config.runner }}
# Only runs on tags that matches the make-release action
if: startsWith(github.ref, 'refs/tags/v')
strategy:
fail-fast: false
matrix:
config:
- arch: x86_64
runner: ubuntu-latest
- arch: aarch64
# For successful fat LTO builds, we need a large runner to avoid OOM errors.
runner: buildjet-16vcpu-ubuntu-2204-arm
steps:
- name: Checkout
uses: actions/checkout@v4
# Buildjet aarch64 runners have only 1.5 GB RAM per core, vs 3.5 GB per core for
# x86_64 runners. To avoid OOM errors on ARM, we create a swap file.
- name: Configure aarch64 build
if: ${{ matrix.config.arch == 'aarch64' }}
run: |
free -h
sudo fallocate -l 16G /swapfile
sudo chmod 600 /swapfile
sudo mkswap /swapfile
sudo swapon /swapfile
echo "/swapfile swap swap defaults 0 0" >> sudo /etc/fstab
# print info
swapon --show
free -h
- name: Build Linux Artifacts
run: |
bash ci/build_linux_artifacts_nodejs.sh ${{ matrix.config.arch }}
- name: Upload Linux Artifacts
uses: actions/upload-artifact@v4
with:
name: nodejs-native-linux-${{ matrix.config.arch }}
path: |
nodejs/dist/*.node
# The generic files are the same in all distros so we just pick
# one to do the upload.
- name: Upload Generic Artifacts
if: ${{ matrix.config.arch == 'x86_64' }}
uses: actions/upload-artifact@v4
with:
name: nodejs-dist
path: |
nodejs/dist/*
!nodejs/dist/*.node
node-windows:
runs-on: windows-2022
# Only runs on tags that matches the make-release action
@@ -199,7 +104,7 @@ jobs:
target: [x86_64-pc-windows-msvc]
steps:
- name: Checkout
uses: actions/checkout@v4
uses: actions/checkout@v3
- name: Install Protoc v21.12
working-directory: C:\
run: |
@@ -216,132 +121,40 @@ jobs:
- name: Build Windows native node modules
run: .\ci\build_windows_artifacts.ps1 ${{ matrix.target }}
- name: Upload Windows Artifacts
uses: actions/upload-artifact@v4
uses: actions/upload-artifact@v3
with:
name: node-native-windows
name: native-windows
path: |
node/dist/lancedb-vectordb-win32*.tgz
nodejs-windows:
runs-on: windows-2022
# Only runs on tags that matches the make-release action
if: startsWith(github.ref, 'refs/tags/v')
strategy:
fail-fast: false
matrix:
target: [x86_64-pc-windows-msvc]
steps:
- name: Checkout
uses: actions/checkout@v4
- name: Install Protoc v21.12
working-directory: C:\
run: |
New-Item -Path 'C:\protoc' -ItemType Directory
Set-Location C:\protoc
Invoke-WebRequest https://github.com/protocolbuffers/protobuf/releases/download/v21.12/protoc-21.12-win64.zip -OutFile C:\protoc\protoc.zip
7z x protoc.zip
Add-Content $env:GITHUB_PATH "C:\protoc\bin"
shell: powershell
- name: Install npm dependencies
run: |
cd nodejs
npm ci
- name: Build Windows native node modules
run: .\ci\build_windows_artifacts_nodejs.ps1 ${{ matrix.target }}
- name: Upload Windows Artifacts
uses: actions/upload-artifact@v4
with:
name: nodejs-native-windows
path: |
nodejs/dist/*.node
release:
needs: [node, node-macos, node-linux, node-windows]
runs-on: ubuntu-latest
# Only runs on tags that matches the make-release action
if: startsWith(github.ref, 'refs/tags/v')
steps:
- uses: actions/download-artifact@v4
with:
pattern: node-*
- uses: actions/download-artifact@v3
- name: Display structure of downloaded files
run: ls -R
- uses: actions/setup-node@v3
with:
node-version: 20
registry-url: "https://registry.npmjs.org"
registry-url: 'https://registry.npmjs.org'
- name: Publish to NPM
env:
NODE_AUTH_TOKEN: ${{ secrets.LANCEDB_NPM_REGISTRY_TOKEN }}
run: |
# Tag beta as "preview" instead of default "latest". See lancedb
# npm publish step for more info.
if [[ $GITHUB_REF =~ refs/tags/v(.*)-beta.* ]]; then
PUBLISH_ARGS="--tag preview"
fi
mv */*.tgz .
for filename in *.tgz; do
npm publish $PUBLISH_ARGS $filename
npm publish $filename
done
release-nodejs:
needs: [nodejs-macos, nodejs-linux, nodejs-windows]
runs-on: ubuntu-latest
# Only runs on tags that matches the make-release action
if: startsWith(github.ref, 'refs/tags/v')
defaults:
run:
shell: bash
working-directory: nodejs
steps:
- name: Checkout
uses: actions/checkout@v4
- uses: actions/download-artifact@v4
with:
name: nodejs-dist
path: nodejs/dist
- uses: actions/download-artifact@v4
name: Download arch-specific binaries
with:
pattern: nodejs-*
path: nodejs/nodejs-artifacts
merge-multiple: true
- name: Display structure of downloaded files
run: find .
- uses: actions/setup-node@v3
with:
node-version: 20
registry-url: "https://registry.npmjs.org"
- name: Install napi-rs
run: npm install -g @napi-rs/cli
- name: Prepare artifacts
run: npx napi artifacts -d nodejs-artifacts
- name: Display structure of staged files
run: find npm
- name: Publish to NPM
env:
NODE_AUTH_TOKEN: ${{ secrets.LANCEDB_NPM_REGISTRY_TOKEN }}
# By default, things are published to the latest tag. This is what is
# installed by default if the user does not specify a version. This is
# good for stable releases, but for pre-releases, we want to publish to
# the "preview" tag so they can install with `npm install lancedb@preview`.
# See: https://medium.com/@mbostock/prereleases-and-npm-e778fc5e2420
run: |
if [[ $GITHUB_REF =~ refs/tags/v(.*)-beta.* ]]; then
npm publish --access public --tag preview
else
npm publish --access public
fi
update-package-lock:
needs: [release]
runs-on: ubuntu-latest
permissions:
contents: write
steps:
- name: Checkout
uses: actions/checkout@v4
uses: actions/checkout@v3
with:
ref: main
persist-credentials: false
@@ -349,87 +162,4 @@ jobs:
lfs: true
- uses: ./.github/workflows/update_package_lock
with:
github_token: ${{ secrets.GITHUB_TOKEN }}
update-package-lock-nodejs:
needs: [release-nodejs]
runs-on: ubuntu-latest
permissions:
contents: write
steps:
- name: Checkout
uses: actions/checkout@v4
with:
ref: main
persist-credentials: false
fetch-depth: 0
lfs: true
- uses: ./.github/workflows/update_package_lock_nodejs
with:
github_token: ${{ secrets.GITHUB_TOKEN }}
gh-release:
runs-on: ubuntu-latest
permissions:
contents: write
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- name: Extract version
id: extract_version
env:
GITHUB_REF: ${{ github.ref }}
run: |
set -e
echo "Extracting tag and version from $GITHUB_REF"
if [[ $GITHUB_REF =~ refs/tags/v(.*) ]]; then
VERSION=${BASH_REMATCH[1]}
TAG=v$VERSION
echo "tag=$TAG" >> $GITHUB_OUTPUT
echo "version=$VERSION" >> $GITHUB_OUTPUT
else
echo "Failed to extract version from $GITHUB_REF"
exit 1
fi
echo "Extracted version $VERSION from $GITHUB_REF"
if [[ $VERSION =~ beta ]]; then
echo "This is a beta release"
# Get last release (that is not this one)
FROM_TAG=$(git tag --sort='version:refname' \
| grep ^v \
| grep -vF "$TAG" \
| python ci/semver_sort.py v \
| tail -n 1)
else
echo "This is a stable release"
# Get last stable tag (ignore betas)
FROM_TAG=$(git tag --sort='version:refname' \
| grep ^v \
| grep -vF "$TAG" \
| grep -v beta \
| python ci/semver_sort.py v \
| tail -n 1)
fi
echo "Found from tag $FROM_TAG"
echo "from_tag=$FROM_TAG" >> $GITHUB_OUTPUT
- name: Create Release Notes
id: release_notes
uses: mikepenz/release-changelog-builder-action@v4
with:
configuration: .github/release_notes.json
toTag: ${{ steps.extract_version.outputs.tag }}
fromTag: ${{ steps.extract_version.outputs.from_tag }}
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
- name: Create GH release
uses: softprops/action-gh-release@v2
with:
prerelease: ${{ contains('beta', github.ref) }}
tag_name: ${{ steps.extract_version.outputs.tag }}
token: ${{ secrets.GITHUB_TOKEN }}
generate_release_notes: false
name: Node/Rust LanceDB v${{ steps.extract_version.outputs.version }}
body: ${{ steps.release_notes.outputs.changelog }}
github_token: ${{ secrets.LANCEDB_RELEASE_TOKEN }}

View File

@@ -1,160 +1,31 @@
name: PyPI Publish
on:
push:
tags:
- 'python-v*'
release:
types: [ published ]
jobs:
linux:
name: Python ${{ matrix.config.platform }} manylinux${{ matrix.config.manylinux }}
timeout-minutes: 60
strategy:
matrix:
config:
- platform: x86_64
manylinux: "2_17"
extra_args: ""
- platform: x86_64
manylinux: "2_28"
extra_args: "--features fp16kernels"
- platform: aarch64
manylinux: "2_24"
extra_args: ""
# We don't build fp16 kernels for aarch64, because it uses
# cross compilation image, which doesn't have a new enough compiler.
runs-on: "ubuntu-22.04"
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- name: Set up Python
uses: actions/setup-python@v4
with:
python-version: 3.8
- uses: ./.github/workflows/build_linux_wheel
with:
python-minor-version: 8
args: "--release --strip ${{ matrix.config.extra_args }}"
arm-build: ${{ matrix.config.platform == 'aarch64' }}
manylinux: ${{ matrix.config.manylinux }}
- uses: ./.github/workflows/upload_wheel
with:
pypi_token: ${{ secrets.LANCEDB_PYPI_API_TOKEN }}
fury_token: ${{ secrets.FURY_TOKEN }}
mac:
timeout-minutes: 60
runs-on: ${{ matrix.config.runner }}
strategy:
matrix:
config:
- target: x86_64-apple-darwin
runner: macos-13
- target: aarch64-apple-darwin
runner: macos-14
env:
MACOSX_DEPLOYMENT_TARGET: 10.15
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- name: Set up Python
uses: actions/setup-python@v4
with:
python-version: 3.12
- uses: ./.github/workflows/build_mac_wheel
with:
python-minor-version: 8
args: "--release --strip --target ${{ matrix.config.target }} --features fp16kernels"
- uses: ./.github/workflows/upload_wheel
with:
pypi_token: ${{ secrets.LANCEDB_PYPI_API_TOKEN }}
fury_token: ${{ secrets.FURY_TOKEN }}
windows:
timeout-minutes: 60
runs-on: windows-latest
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- name: Set up Python
uses: actions/setup-python@v4
with:
python-version: 3.8
- uses: ./.github/workflows/build_windows_wheel
with:
python-minor-version: 8
args: "--release --strip"
vcpkg_token: ${{ secrets.VCPKG_GITHUB_PACKAGES }}
- uses: ./.github/workflows/upload_wheel
with:
pypi_token: ${{ secrets.LANCEDB_PYPI_API_TOKEN }}
fury_token: ${{ secrets.FURY_TOKEN }}
gh-release:
publish:
runs-on: ubuntu-latest
permissions:
contents: write
# Only runs on tags that matches the python-make-release action
if: startsWith(github.ref, 'refs/tags/python-v')
defaults:
run:
shell: bash
working-directory: python
steps:
- uses: actions/checkout@v4
- uses: actions/checkout@v3
- name: Set up Python
uses: actions/setup-python@v4
with:
fetch-depth: 0
lfs: true
- name: Extract version
id: extract_version
env:
GITHUB_REF: ${{ github.ref }}
python-version: "3.8"
- name: Build distribution
run: |
set -e
echo "Extracting tag and version from $GITHUB_REF"
if [[ $GITHUB_REF =~ refs/tags/python-v(.*) ]]; then
VERSION=${BASH_REMATCH[1]}
TAG=python-v$VERSION
echo "tag=$TAG" >> $GITHUB_OUTPUT
echo "version=$VERSION" >> $GITHUB_OUTPUT
else
echo "Failed to extract version from $GITHUB_REF"
exit 1
fi
echo "Extracted version $VERSION from $GITHUB_REF"
if [[ $VERSION =~ beta ]]; then
echo "This is a beta release"
# Get last release (that is not this one)
FROM_TAG=$(git tag --sort='version:refname' \
| grep ^python-v \
| grep -vF "$TAG" \
| python ci/semver_sort.py python-v \
| tail -n 1)
else
echo "This is a stable release"
# Get last stable tag (ignore betas)
FROM_TAG=$(git tag --sort='version:refname' \
| grep ^python-v \
| grep -vF "$TAG" \
| grep -v beta \
| python ci/semver_sort.py python-v \
| tail -n 1)
fi
echo "Found from tag $FROM_TAG"
echo "from_tag=$FROM_TAG" >> $GITHUB_OUTPUT
- name: Create Python Release Notes
id: python_release_notes
uses: mikepenz/release-changelog-builder-action@v4
ls -la
pip install wheel setuptools --upgrade
python setup.py sdist bdist_wheel
- name: Publish
uses: pypa/gh-action-pypi-publish@v1.8.5
with:
configuration: .github/release_notes.json
toTag: ${{ steps.extract_version.outputs.tag }}
fromTag: ${{ steps.extract_version.outputs.from_tag }}
env:
GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
- name: Create Python GH release
uses: softprops/action-gh-release@v2
with:
prerelease: ${{ contains('beta', github.ref) }}
tag_name: ${{ steps.extract_version.outputs.tag }}
token: ${{ secrets.GITHUB_TOKEN }}
generate_release_notes: false
name: Python LanceDB v${{ steps.extract_version.outputs.version }}
body: ${{ steps.python_release_notes.outputs.changelog }}
password: ${{ secrets.LANCEDB_PYPI_API_TOKEN }}
packages-dir: python/dist

View File

@@ -0,0 +1,56 @@
name: Python - Create release commit
on:
workflow_dispatch:
inputs:
dry_run:
description: 'Dry run (create the local commit/tags but do not push it)'
required: true
default: "false"
type: choice
options:
- "true"
- "false"
part:
description: 'What kind of release is this?'
required: true
default: 'patch'
type: choice
options:
- patch
- minor
- major
jobs:
bump-version:
runs-on: ubuntu-latest
steps:
- name: Check out main
uses: actions/checkout@v3
with:
ref: main
persist-credentials: false
fetch-depth: 0
lfs: true
- name: Set git configs for bumpversion
shell: bash
run: |
git config user.name 'Lance Release'
git config user.email 'lance-dev@lancedb.com'
- name: Set up Python 3.10
uses: actions/setup-python@v4
with:
python-version: "3.10"
- name: Bump version, create tag and commit
working-directory: python
run: |
pip install bump2version
bumpversion --verbose ${{ inputs.part }}
- name: Push new version and tag
if: ${{ inputs.dry_run }} == "false"
uses: ad-m/github-push-action@master
with:
github_token: ${{ secrets.LANCEDB_RELEASE_TOKEN }}
branch: main
tags: true

View File

@@ -14,135 +14,47 @@ concurrency:
cancel-in-progress: true
jobs:
lint:
name: "Lint"
timeout-minutes: 30
runs-on: "ubuntu-22.04"
defaults:
run:
shell: bash
working-directory: python
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: "3.11"
- name: Install ruff
run: |
pip install ruff==0.2.2
- name: Format check
run: ruff format --check .
- name: Lint
run: ruff .
doctest:
name: "Doctest"
timeout-minutes: 30
runs-on: "ubuntu-22.04"
defaults:
run:
shell: bash
working-directory: python
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: "3.11"
cache: "pip"
- name: Install protobuf
run: |
sudo apt update
sudo apt install -y protobuf-compiler
- uses: Swatinem/rust-cache@v2
with:
workspaces: python
- name: Install
run: |
pip install --extra-index-url https://pypi.fury.io/lancedb/ -e .[tests,dev,embeddings]
pip install tantivy
pip install mlx
- name: Doctest
run: pytest --doctest-modules python/lancedb
linux:
name: "Linux: python-3.${{ matrix.python-minor-version }}"
timeout-minutes: 30
strategy:
matrix:
python-minor-version: ["9", "11"]
python-minor-version: [ "8", "9", "10", "11" ]
runs-on: "ubuntu-22.04"
defaults:
run:
shell: bash
working-directory: python
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- name: Install protobuf
run: |
sudo apt update
sudo apt install -y protobuf-compiler
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: 3.${{ matrix.python-minor-version }}
- uses: Swatinem/rust-cache@v2
with:
workspaces: python
- uses: ./.github/workflows/build_linux_wheel
- uses: ./.github/workflows/run_tests
with:
integration: true
# Make sure wheels are not included in the Rust cache
- name: Delete wheels
run: rm -rf target/wheels
- uses: actions/checkout@v3
with:
fetch-depth: 0
lfs: true
- name: Set up Python
uses: actions/setup-python@v4
with:
python-version: 3.${{ matrix.python-minor-version }}
- name: Install lancedb
run: |
pip install -e .[tests]
pip install tantivy@git+https://github.com/quickwit-oss/tantivy-py#164adc87e1a033117001cf70e38c82a53014d985
pip install pytest pytest-mock ruff
- name: Lint
run: ruff format --check .
- name: Run tests
run: pytest -m "not slow" -x -v --durations=30 tests
- name: doctest
run: pytest --doctest-modules lancedb
platform:
name: "Mac: ${{ matrix.config.name }}"
name: "Platform: ${{ matrix.config.name }}"
timeout-minutes: 30
strategy:
matrix:
config:
- name: x86
config:
- name: x86 Mac
runner: macos-13
- name: Arm
runner: macos-14
runs-on: "${{ matrix.config.runner }}"
defaults:
run:
shell: bash
working-directory: python
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: "3.11"
- uses: Swatinem/rust-cache@v2
with:
workspaces: python
- uses: ./.github/workflows/build_mac_wheel
- uses: ./.github/workflows/run_tests
# Make sure wheels are not included in the Rust cache
- name: Delete wheels
run: rm -rf target/wheels
windows:
name: "Windows: ${{ matrix.config.name }}"
timeout-minutes: 30
strategy:
matrix:
config:
- name: x86
- name: Arm Mac
runner: macos-13-xlarge
- name: x86 Windows
runner: windows-latest
runs-on: "${{ matrix.config.runner }}"
defaults:
@@ -150,22 +62,21 @@ jobs:
shell: bash
working-directory: python
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: "3.11"
- uses: Swatinem/rust-cache@v2
with:
workspaces: python
- uses: ./.github/workflows/build_windows_wheel
- uses: ./.github/workflows/run_tests
# Make sure wheels are not included in the Rust cache
- name: Delete wheels
run: rm -rf target/wheels
- uses: actions/checkout@v3
with:
fetch-depth: 0
lfs: true
- name: Set up Python
uses: actions/setup-python@v4
with:
python-version: "3.11"
- name: Install lancedb
run: |
pip install -e .[tests]
pip install tantivy@git+https://github.com/quickwit-oss/tantivy-py#164adc87e1a033117001cf70e38c82a53014d985
pip install pytest pytest-mock black
- name: Run tests
run: pytest -m "not slow" -x -v --durations=30 tests
pydantic1x:
timeout-minutes: 30
runs-on: "ubuntu-22.04"
@@ -174,22 +85,21 @@ jobs:
shell: bash
working-directory: python
steps:
- uses: actions/checkout@v4
with:
fetch-depth: 0
lfs: true
- name: Install dependencies
run: |
sudo apt update
sudo apt install -y protobuf-compiler
- name: Set up Python
uses: actions/setup-python@v5
with:
python-version: 3.9
- name: Install lancedb
run: |
pip install "pydantic<2"
pip install --extra-index-url https://pypi.fury.io/lancedb/ -e .[tests]
pip install tantivy
- name: Run tests
run: pytest -m "not slow and not s3_test" -x -v --durations=30 python/tests
- uses: actions/checkout@v3
with:
fetch-depth: 0
lfs: true
- name: Set up Python
uses: actions/setup-python@v4
with:
python-version: 3.9
- name: Install lancedb
run: |
pip install "pydantic<2"
pip install -e .[tests]
pip install tantivy@git+https://github.com/quickwit-oss/tantivy-py#164adc87e1a033117001cf70e38c82a53014d985
pip install pytest pytest-mock
- name: Run tests
run: pytest -m "not slow" -x -v --durations=30 tests
- name: doctest
run: pytest --doctest-modules lancedb

View File

@@ -1,31 +0,0 @@
name: run-tests
description: "Install lance wheel and run unit tests"
inputs:
python-minor-version:
required: true
description: "8 9 10 11 12"
integration:
required: false
description: "Run integration tests"
default: "false"
runs:
using: "composite"
steps:
- name: Install lancedb
shell: bash
run: |
pip3 install --extra-index-url https://pypi.fury.io/lancedb/ $(ls target/wheels/lancedb-*.whl)[tests,dev]
- name: Setup localstack for integration tests
if: ${{ inputs.integration == 'true' }}
shell: bash
working-directory: .
run: docker compose up --detach --wait
- name: pytest (with integration)
shell: bash
if: ${{ inputs.integration == 'true' }}
run: pytest -m "not slow" -x -v --durations=30 python/python/tests
- name: pytest (no integration tests)
shell: bash
if: ${{ inputs.integration != 'true' }}
run: pytest -m "not slow and not s3_test" -x -v --durations=30 python/python/tests

View File

@@ -31,12 +31,8 @@ jobs:
run:
shell: bash
working-directory: rust
env:
# Need up-to-date compilers for kernels
CC: gcc-12
CXX: g++-12
steps:
- uses: actions/checkout@v4
- uses: actions/checkout@v3
with:
fetch-depth: 0
lfs: true
@@ -58,12 +54,8 @@ jobs:
run:
shell: bash
working-directory: rust
env:
# Need up-to-date compilers for kernels
CC: gcc-12
CXX: g++-12
steps:
- uses: actions/checkout@v4
- uses: actions/checkout@v3
with:
fetch-depth: 0
lfs: true
@@ -74,27 +66,22 @@ jobs:
run: |
sudo apt update
sudo apt install -y protobuf-compiler libssl-dev
- name: Start S3 integration test environment
working-directory: .
run: docker compose up --detach --wait
- name: Build
run: cargo build --all-features
- name: Run tests
run: cargo test --all-features
- name: Run examples
run: cargo run --example simple
macos:
timeout-minutes: 30
strategy:
matrix:
mac-runner: [ "macos-13", "macos-14" ]
mac-runner: [ "macos-13", "macos-13-xlarge" ]
runs-on: "${{ matrix.mac-runner }}"
defaults:
run:
shell: bash
working-directory: rust
steps:
- uses: actions/checkout@v4
- uses: actions/checkout@v3
with:
fetch-depth: 0
lfs: true
@@ -108,12 +95,11 @@ jobs:
- name: Build
run: cargo build --all-features
- name: Run tests
# Run with everything except the integration tests.
run: cargo test --features remote,fp16kernels
run: cargo test --all-features
windows:
runs-on: windows-2022
steps:
- uses: actions/checkout@v4
- uses: actions/checkout@v3
- uses: Swatinem/rust-cache@v2
with:
workspaces: rust
@@ -131,4 +117,3 @@ jobs:
$env:VCPKG_ROOT = $env:VCPKG_INSTALLATION_ROOT
cargo build
cargo test

View File

@@ -1,33 +0,0 @@
name: update_package_lock_nodejs
description: "Update nodejs's package.lock"
inputs:
github_token:
required: true
description: "github token for the repo"
runs:
using: "composite"
steps:
- uses: actions/setup-node@v3
with:
node-version: 20
- name: Set git configs
shell: bash
run: |
git config user.name 'Lance Release'
git config user.email 'lance-dev@lancedb.com'
- name: Update package-lock.json file
working-directory: ./nodejs
run: |
npm install
git add package-lock.json
git commit -m "Updating package-lock.json"
shell: bash
- name: Push changes
if: ${{ inputs.dry_run }} == "false"
uses: ad-m/github-push-action@master
with:
github_token: ${{ inputs.github_token }}
branch: main
tags: true

View File

@@ -8,7 +8,7 @@ jobs:
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v4
uses: actions/checkout@v3
with:
ref: main
persist-credentials: false

View File

@@ -1,19 +0,0 @@
name: Update NodeJs package-lock.json
on:
workflow_dispatch:
jobs:
publish:
runs-on: ubuntu-latest
steps:
- name: Checkout
uses: actions/checkout@v4
with:
ref: main
persist-credentials: false
fetch-depth: 0
lfs: true
- uses: ./.github/workflows/update_package_lock_nodejs
with:
github_token: ${{ secrets.LANCEDB_RELEASE_TOKEN }}

View File

@@ -1,44 +0,0 @@
name: upload-wheel
description: "Upload wheels to Pypi"
inputs:
pypi_token:
required: true
description: "release token for the repo"
fury_token:
required: true
description: "release token for the fury repo"
runs:
using: "composite"
steps:
- name: Install dependencies
shell: bash
run: |
python -m pip install --upgrade pip
pip install twine
- name: Choose repo
shell: bash
id: choose_repo
run: |
if [ ${{ github.ref }} == "*beta*" ]; then
echo "repo=fury" >> $GITHUB_OUTPUT
else
echo "repo=pypi" >> $GITHUB_OUTPUT
fi
- name: Publish to PyPI
shell: bash
env:
FURY_TOKEN: ${{ inputs.fury_token }}
PYPI_TOKEN: ${{ inputs.pypi_token }}
run: |
if [ ${{ steps.choose_repo.outputs.repo }} == "fury" ]; then
WHEEL=$(ls target/wheels/lancedb-*.whl 2> /dev/null | head -n 1)
echo "Uploading $WHEEL to Fury"
curl -f -F package=@$WHEEL https://$FURY_TOKEN@push.fury.io/lancedb/
else
twine upload --repository ${{ steps.choose_repo.outputs.repo }} \
--username __token__ \
--password $PYPI_TOKEN \
target/wheels/lancedb-*.whl
fi

14
.gitignore vendored
View File

@@ -4,10 +4,9 @@
**/__pycache__
.DS_Store
venv
.venv
.vscode
.zed
rust/target
rust/Cargo.lock
@@ -23,11 +22,6 @@ python/dist
**/.hypothesis
# Compiled Dynamic libraries
*.so
*.dylib
*.dll
## Javascript
*.node
**/node_modules
@@ -35,12 +29,8 @@ python/dist
node/dist
node/examples/**/package-lock.json
node/examples/**/dist
nodejs/lancedb/native*
dist
## Rust
target
**/sccache.log
Cargo.lock
Cargo.lock

View File

@@ -5,17 +5,17 @@ repos:
- id: check-yaml
- id: end-of-file-fixer
- id: trailing-whitespace
- repo: https://github.com/psf/black
rev: 22.12.0
hooks:
- id: black
- repo: https://github.com/astral-sh/ruff-pre-commit
# Ruff version.
rev: v0.2.2
rev: v0.0.277
hooks:
- id: ruff
- repo: local
hooks:
- id: local-biome-check
name: biome check
entry: npx @biomejs/biome@1.8.3 check --config-path nodejs/biome.json nodejs/
language: system
types: [text]
files: "nodejs/.*"
exclude: nodejs/lancedb/native.d.ts|nodejs/dist/.*|nodejs/examples/.*
- repo: https://github.com/pycqa/isort
rev: 5.12.0
hooks:
- id: isort
name: isort (python)

View File

@@ -1,51 +1,28 @@
[workspace]
members = [
"rust/ffi/node",
"rust/lancedb",
"nodejs",
"python",
"java/core/lancedb-jni",
]
members = ["rust/ffi/node", "rust/vectordb"]
# Python package needs to be built by maturin.
exclude = ["python"]
resolver = "2"
[workspace.package]
edition = "2021"
authors = ["LanceDB Devs <dev@lancedb.com>"]
license = "Apache-2.0"
repository = "https://github.com/lancedb/lancedb"
description = "Serverless, low-latency vector database for AI applications"
keywords = ["lancedb", "lance", "database", "vector", "search"]
categories = ["database-implementations"]
[workspace.dependencies]
lance = { "version" = "=0.14.1", "features" = ["dynamodb"] }
lance-index = { "version" = "=0.14.1" }
lance-linalg = { "version" = "=0.14.1" }
lance-testing = { "version" = "=0.14.1" }
lance-datafusion = { "version" = "=0.14.1" }
lance = { "version" = "=0.9.1", "features" = ["dynamodb"] }
lance-index = { "version" = "=0.9.1" }
lance-linalg = { "version" = "=0.9.1" }
lance-testing = { "version" = "=0.9.1" }
# Note that this one does not include pyarrow
arrow = { version = "51.0", optional = false }
arrow-array = "51.0"
arrow-data = "51.0"
arrow-ipc = "51.0"
arrow-ord = "51.0"
arrow-schema = "51.0"
arrow-arith = "51.0"
arrow-cast = "51.0"
async-trait = "0"
chrono = "0.4.35"
datafusion-physical-plan = "37.1"
half = { "version" = "=2.4.1", default-features = false, features = [
arrow = { version = "49.0.0", optional = false }
arrow-array = "49.0"
arrow-data = "49.0"
arrow-ipc = "49.0"
arrow-ord = "49.0"
arrow-schema = "49.0"
arrow-arith = "49.0"
arrow-cast = "49.0"
chrono = "0.4.23"
half = { "version" = "=2.3.1", default-features = false, features = [
"num-traits",
] }
futures = "0"
log = "0.4"
object_store = "0.9.0"
pin-project = "1.0.7"
object_store = "0.8.0"
snafu = "0.7.4"
url = "2"
num-traits = "0.2"
regex = "1.10"
lazy_static = "1"

View File

@@ -1,13 +1,13 @@
<div align="center">
<p align="center">
<img width="275" alt="LanceDB Logo" src="https://github.com/lancedb/lancedb/assets/5846846/37d7c7ad-c2fd-4f56-9f16-fffb0d17c73a">
<img width="275" alt="LanceDB Logo" src="https://user-images.githubusercontent.com/917119/226205734-6063d87a-1ecc-45fe-85be-1dea6383a3d8.png">
**Developer-friendly, database for multimodal AI**
**Developer-friendly, serverless vector database for AI applications**
<a href='https://github.com/lancedb/vectordb-recipes/tree/main' target="_blank"><img alt='LanceDB' src='https://img.shields.io/badge/VectorDB_Recipes-100000?style=for-the-badge&logo=LanceDB&logoColor=white&labelColor=645cfb&color=645cfb'/></a>
<a href='https://lancedb.github.io/lancedb/' target="_blank"><img alt='lancdb' src='https://img.shields.io/badge/DOCS-100000?style=for-the-badge&logo=lancdb&logoColor=white&labelColor=645cfb&color=645cfb'/></a>
[![Blog](https://img.shields.io/badge/Blog-12100E?style=for-the-badge&logoColor=white)](https://blog.lancedb.com/)
[![Medium](https://img.shields.io/badge/Medium-12100E?style=for-the-badge&logo=medium&logoColor=white)](https://blog.lancedb.com/)
[![Discord](https://img.shields.io/badge/Discord-%235865F2.svg?style=for-the-badge&logo=discord&logoColor=white)](https://discord.gg/zMM32dvNtd)
[![Twitter](https://img.shields.io/badge/Twitter-%231DA1F2.svg?style=for-the-badge&logo=Twitter&logoColor=white)](https://twitter.com/lancedb)
@@ -20,7 +20,7 @@
<hr />
LanceDB is an open-source database for vector-search built with persistent storage, which greatly simplifies retrieval, filtering and management of embeddings.
LanceDB is an open-source database for vector-search built with persistent storage, which greatly simplifies retrevial, filtering and management of embeddings.
The key features of LanceDB include:
@@ -36,7 +36,7 @@ The key features of LanceDB include:
* GPU support in building vector index(*).
* Ecosystem integrations with [LangChain 🦜️🔗](https://python.langchain.com/docs/integrations/vectorstores/lancedb/), [LlamaIndex 🦙](https://gpt-index.readthedocs.io/en/latest/examples/vector_stores/LanceDBIndexDemo.html), Apache-Arrow, Pandas, Polars, DuckDB and more on the way.
* Ecosystem integrations with [LangChain 🦜️🔗](https://python.langchain.com/en/latest/modules/indexes/vectorstores/examples/lanecdb.html), [LlamaIndex 🦙](https://gpt-index.readthedocs.io/en/latest/examples/vector_stores/LanceDBIndexDemo.html), Apache-Arrow, Pandas, Polars, DuckDB and more on the way.
LanceDB's core is written in Rust 🦀 and is built using <a href="https://github.com/lancedb/lance">Lance</a>, an open-source columnar format designed for performant ML workloads.
@@ -51,19 +51,12 @@ npm install vectordb
const lancedb = require('vectordb');
const db = await lancedb.connect('data/sample-lancedb');
const table = await db.createTable({
name: 'vectors',
data: [
{ id: 1, vector: [0.1, 0.2], item: "foo", price: 10 },
{ id: 2, vector: [1.1, 1.2], item: "bar", price: 50 }
]
})
const table = await db.createTable('vectors',
[{ id: 1, vector: [0.1, 0.2], item: "foo", price: 10 },
{ id: 2, vector: [1.1, 1.2], item: "bar", price: 50 }])
const query = table.search([0.1, 0.3]).limit(2);
const results = await query.execute();
// You can also search for rows by specific criteria without involving a vector search.
const rowsByCriteria = await table.search(undefined).where("price >= 10").execute();
```
**Python**
@@ -83,5 +76,5 @@ result = table.search([100, 100]).limit(2).to_pandas()
```
## Blogs, Tutorials & Videos
* 📈 <a href="https://blog.lancedb.com/benchmarking-random-access-in-lance/">2000x better performance with Lance over Parquet</a>
* 📈 <a href="https://blog.eto.ai/benchmarking-random-access-in-lance-ed690757a826">2000x better performance with Lance over Parquet</a>
* 🤖 <a href="https://github.com/lancedb/lancedb/blob/main/docs/src/notebooks/youtube_transcript_search.ipynb">Build a question and answer bot with LanceDB</a>

View File

@@ -13,9 +13,7 @@ docker build \
.
popd
# We turn on memory swap to avoid OOM killer
docker run \
-v $(pwd):/io -w /io \
--memory-swap=-1 \
lancedb-node-manylinux \
bash ci/manylinux_node/build.sh $ARCH

View File

@@ -1,21 +0,0 @@
#!/bin/bash
set -e
ARCH=${1:-x86_64}
# We pass down the current user so that when we later mount the local files
# into the container, the files are accessible by the current user.
pushd ci/manylinux_nodejs
docker build \
-t lancedb-nodejs-manylinux \
--build-arg="ARCH=$ARCH" \
--build-arg="DOCKER_USER=$(id -u)" \
--progress=plain \
.
popd
# We turn on memory swap to avoid OOM killer
docker run \
-v $(pwd):/io -w /io \
--memory-swap=-1 \
lancedb-nodejs-manylinux \
bash ci/manylinux_nodejs/build.sh $ARCH

View File

@@ -1,34 +0,0 @@
# Builds the macOS artifacts (nodejs binaries).
# Usage: ./ci/build_macos_artifacts_nodejs.sh [target]
# Targets supported: x86_64-apple-darwin aarch64-apple-darwin
set -e
prebuild_rust() {
# Building here for the sake of easier debugging.
pushd rust/lancedb
echo "Building rust library for $1"
export RUST_BACKTRACE=1
cargo build --release --target $1
popd
}
build_node_binaries() {
pushd nodejs
echo "Building nodejs library for $1"
export RUST_TARGET=$1
npm run build-release
popd
}
if [ -n "$1" ]; then
targets=$1
else
targets="x86_64-apple-darwin aarch64-apple-darwin"
fi
echo "Building artifacts for targets: $targets"
for target in $targets
do
prebuild_rust $target
build_node_binaries $target
done

View File

@@ -1,41 +0,0 @@
# Builds the Windows artifacts (nodejs binaries).
# Usage: .\ci\build_windows_artifacts_nodejs.ps1 [target]
# Targets supported:
# - x86_64-pc-windows-msvc
# - i686-pc-windows-msvc
function Prebuild-Rust {
param (
[string]$target
)
# Building here for the sake of easier debugging.
Push-Location -Path "rust/lancedb"
Write-Host "Building rust library for $target"
$env:RUST_BACKTRACE=1
cargo build --release --target $target
Pop-Location
}
function Build-NodeBinaries {
param (
[string]$target
)
Push-Location -Path "nodejs"
Write-Host "Building nodejs library for $target"
$env:RUST_TARGET=$target
npm run build-release
Pop-Location
}
$targets = $args[0]
if (-not $targets) {
$targets = "x86_64-pc-windows-msvc"
}
Write-Host "Building artifacts for targets: $targets"
foreach ($target in $targets) {
Prebuild-Rust $target
Build-NodeBinaries $target
}

View File

@@ -1,51 +0,0 @@
set -e
RELEASE_TYPE=${1:-"stable"}
BUMP_MINOR=${2:-false}
TAG_PREFIX=${3:-"v"} # Such as "python-v"
HEAD_SHA=${4:-$(git rev-parse HEAD)}
readonly SELF_DIR=$(cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
PREV_TAG=$(git tag --sort='version:refname' | grep ^$TAG_PREFIX | python $SELF_DIR/semver_sort.py $TAG_PREFIX | tail -n 1)
echo "Found previous tag $PREV_TAG"
# Initially, we don't want to tag if we are doing stable, because we will bump
# again later. See comment at end for why.
if [[ "$RELEASE_TYPE" == 'stable' ]]; then
BUMP_ARGS="--no-tag"
fi
# If last is stable and not bumping minor
if [[ $PREV_TAG != *beta* ]]; then
if [[ "$BUMP_MINOR" != "false" ]]; then
# X.Y.Z -> X.(Y+1).0-beta.0
bump-my-version bump -vv $BUMP_ARGS minor
else
# X.Y.Z -> X.Y.(Z+1)-beta.0
bump-my-version bump -vv $BUMP_ARGS patch
fi
else
if [[ "$BUMP_MINOR" != "false" ]]; then
# X.Y.Z-beta.N -> X.(Y+1).0-beta.0
bump-my-version bump -vv $BUMP_ARGS minor
else
# X.Y.Z-beta.N -> X.Y.Z-beta.(N+1)
bump-my-version bump -vv $BUMP_ARGS pre_n
fi
fi
# The above bump will always bump to a pre-release version. If we are releasing
# a stable version, bump the pre-release level ("pre_l") to make it stable.
if [[ $RELEASE_TYPE == 'stable' ]]; then
# X.Y.Z-beta.N -> X.Y.Z
bump-my-version bump -vv pre_l
fi
# Validate that we have incremented version appropriately for breaking changes
NEW_TAG=$(git describe --tags --exact-match HEAD)
NEW_VERSION=$(echo $NEW_TAG | sed "s/^$TAG_PREFIX//")
LAST_STABLE_RELEASE=$(git tag --sort='version:refname' | grep ^$TAG_PREFIX | grep -v beta | grep -vF "$NEW_TAG" | python $SELF_DIR/semver_sort.py $TAG_PREFIX | tail -n 1)
LAST_STABLE_VERSION=$(echo $LAST_STABLE_RELEASE | sed "s/^$TAG_PREFIX//")
python $SELF_DIR/check_breaking_changes.py $LAST_STABLE_RELEASE $HEAD_SHA $LAST_STABLE_VERSION $NEW_VERSION

View File

@@ -1,35 +0,0 @@
"""
Check whether there are any breaking changes in the PRs between the base and head commits.
If there are, assert that we have incremented the minor version.
"""
import argparse
import os
from packaging.version import parse
from github import Github
if __name__ == "__main__":
parser = argparse.ArgumentParser()
parser.add_argument("base")
parser.add_argument("head")
parser.add_argument("last_stable_version")
parser.add_argument("current_version")
args = parser.parse_args()
repo = Github(os.environ["GITHUB_TOKEN"]).get_repo(os.environ["GITHUB_REPOSITORY"])
commits = repo.compare(args.base, args.head).commits
prs = (pr for commit in commits for pr in commit.get_pulls())
for pr in prs:
if any(label.name == "breaking-change" for label in pr.labels):
print(f"Breaking change in PR: {pr.html_url}")
break
else:
print("No breaking changes found.")
exit(0)
last_stable_version = parse(args.last_stable_version)
current_version = parse(args.current_version)
if current_version.minor <= last_stable_version.minor:
print("Minor version is not greater than the last stable version.")
exit(1)

View File

@@ -1,31 +0,0 @@
# Many linux dockerfile with Rust, Node, and Lance dependencies installed.
# This container allows building the node modules native libraries in an
# environment with a very old glibc, so that we are compatible with a wide
# range of linux distributions.
ARG ARCH=x86_64
FROM quay.io/pypa/manylinux2014_${ARCH}
ARG ARCH=x86_64
ARG DOCKER_USER=default_user
# Install static openssl
COPY install_openssl.sh install_openssl.sh
RUN ./install_openssl.sh ${ARCH} > /dev/null
# Protobuf is also installed as root.
COPY install_protobuf.sh install_protobuf.sh
RUN ./install_protobuf.sh ${ARCH}
ENV DOCKER_USER=${DOCKER_USER}
# Create a group and user
RUN echo ${ARCH} && adduser --user-group --create-home --uid ${DOCKER_USER} build_user
# We switch to the user to install Rust and Node, since those like to be
# installed at the user level.
USER ${DOCKER_USER}
COPY prepare_manylinux_node.sh prepare_manylinux_node.sh
RUN cp /prepare_manylinux_node.sh $HOME/ && \
cd $HOME && \
./prepare_manylinux_node.sh ${ARCH}

View File

@@ -1,18 +0,0 @@
#!/bin/bash
# Builds the nodejs module for manylinux. Invoked by ci/build_linux_artifacts_nodejs.sh.
set -e
ARCH=${1:-x86_64}
if [ "$ARCH" = "x86_64" ]; then
export OPENSSL_LIB_DIR=/usr/local/lib64/
else
export OPENSSL_LIB_DIR=/usr/local/lib/
fi
export OPENSSL_STATIC=1
export OPENSSL_INCLUDE_DIR=/usr/local/include/openssl
source $HOME/.bashrc
cd nodejs
npm ci
npm run build-release

View File

@@ -1,26 +0,0 @@
#!/bin/bash
# Builds openssl from source so we can statically link to it
# this is to avoid the error we get with the system installation:
# /usr/bin/ld: <library>: version node not found for symbol SSLeay@@OPENSSL_1.0.1
# /usr/bin/ld: failed to set dynamic section sizes: Bad value
set -e
git clone -b OpenSSL_1_1_1u \
--single-branch \
https://github.com/openssl/openssl.git
pushd openssl
if [[ $1 == x86_64* ]]; then
ARCH=linux-x86_64
else
# gnu target
ARCH=linux-aarch64
fi
./Configure no-shared $ARCH
make
make install

View File

@@ -1,15 +0,0 @@
#!/bin/bash
# Installs protobuf compiler. Should be run as root.
set -e
if [[ $1 == x86_64* ]]; then
ARCH=x86_64
else
# gnu target
ARCH=aarch_64
fi
PB_REL=https://github.com/protocolbuffers/protobuf/releases
PB_VERSION=23.1
curl -LO $PB_REL/download/v$PB_VERSION/protoc-$PB_VERSION-linux-$ARCH.zip
unzip protoc-$PB_VERSION-linux-$ARCH.zip -d /usr/local

View File

@@ -1,21 +0,0 @@
#!/bin/bash
set -e
install_node() {
echo "Installing node..."
curl -o- https://raw.githubusercontent.com/nvm-sh/nvm/v0.34.0/install.sh | bash
source "$HOME"/.bashrc
nvm install --no-progress 16
}
install_rust() {
echo "Installing rust..."
curl https://sh.rustup.rs -sSf | bash -s -- -y
export PATH="$PATH:/root/.cargo/bin"
}
install_node
install_rust

View File

@@ -1,35 +0,0 @@
"""
Takes a list of semver strings and sorts them in ascending order.
"""
import sys
from packaging.version import parse, InvalidVersion
if __name__ == "__main__":
import argparse
parser = argparse.ArgumentParser()
parser.add_argument("prefix", default="v")
args = parser.parse_args()
# Read the input from stdin
lines = sys.stdin.readlines()
# Parse the versions
versions = []
for line in lines:
line = line.strip()
try:
version_str = line.removeprefix(args.prefix)
version = parse(version_str)
except InvalidVersion:
# There are old tags that don't follow the semver format
print(f"Invalid version: {line}", file=sys.stderr)
continue
versions.append((line, version))
# Sort the versions
versions.sort(key=lambda x: x[1])
# Print the sorted versions as original strings
for line, _ in versions:
print(line)

View File

@@ -1,18 +1,18 @@
version: "3.9"
services:
localstack:
image: localstack/localstack:3.3
image: localstack/localstack:0.14
ports:
- 4566:4566
environment:
- SERVICES=s3,dynamodb,kms
- SERVICES=s3,dynamodb
- DEBUG=1
- LS_LOG=trace
- DOCKER_HOST=unix:///var/run/docker.sock
- AWS_ACCESS_KEY_ID=ACCESSKEY
- AWS_SECRET_ACCESS_KEY=SECRETKEY
healthcheck:
test: [ "CMD", "curl", "-s", "http://localhost:4566/_localstack/health" ]
test: [ "CMD", "curl", "-f", "http://localhost:4566/health" ]
interval: 5s
retries: 3
start_period: 10s

View File

@@ -1,27 +0,0 @@
#Simple base dockerfile that supports basic dependencies required to run lance with FTS and Hybrid Search
#Usage docker build -t lancedb:latest -f Dockerfile .
FROM python:3.10-slim-buster
# Install Rust
RUN apt-get update && apt-get install -y curl build-essential && \
curl https://sh.rustup.rs -sSf | sh -s -- -y
# Set the environment variable for Rust
ENV PATH="/root/.cargo/bin:${PATH}"
# Install protobuf compiler
RUN apt-get install -y protobuf-compiler && \
apt-get clean && \
rm -rf /var/lib/apt/lists/*
RUN apt-get -y update &&\
apt-get -y upgrade && \
apt-get -y install git
# Verify installations
RUN python --version && \
rustc --version && \
protoc --version
RUN pip install tantivy lancedb

View File

@@ -16,29 +16,11 @@ unreleased features.
### Building node module and create markdown files
See [Javascript docs README](./src/javascript/README.md)
See [Javascript docs README](docs/src/javascript/README.md)
### Build docs
From LanceDB repo root:
Run: `PYTHONPATH=. mkdocs build -f docs/mkdocs.yml`
If successful, you should see a `docs/site` directory that you can verify locally.
### Run local server
You can run a local server to test the docs prior to deployment by navigating to the `docs` directory and running the following command:
```bash
cd docs
mkdocs serve
```
### Run doctest for typescript example
```bash
cd lancedb/docs
npm i
npm run build
npm run all
```
If successful, you should see a `docs/site` directory that you can verify locally.

View File

@@ -1,4 +1,4 @@
site_name: LanceDB
site_name: LanceDB Docs
site_url: https://lancedb.github.io/lancedb/
repo_url: https://github.com/lancedb/lancedb
edit_uri: https://github.com/lancedb/lancedb/tree/main/docs/src
@@ -9,252 +9,152 @@ theme:
name: "material"
logo: assets/logo.png
favicon: assets/logo.png
palette:
# Palette toggle for light mode
- scheme: lancedb
primary: custom
toggle:
icon: material/weather-night
name: Switch to dark mode
# Palette toggle for dark mode
- scheme: slate
primary: custom
toggle:
icon: material/weather-sunny
name: Switch to light mode
features:
- content.code.copy
- content.tabs.link
- content.action.edit
- toc.follow
- toc.integrate
- navigation.top
- navigation.tabs
- navigation.tabs.sticky
- navigation.footer
- navigation.tracking
- navigation.instant
- navigation.indexes
- navigation.expand
icon:
repo: fontawesome/brands/github
custom_dir: overrides
plugins:
- search
- autorefs
- mkdocstrings:
handlers:
python:
paths: [../python]
options:
docstring_style: numpy
heading_level: 3
show_source: true
show_symbol_type_in_heading: true
show_signature_annotations: true
show_root_heading: true
members_order: source
import:
# for cross references
- https://arrow.apache.org/docs/objects.inv
- https://pandas.pydata.org/docs/objects.inv
- mkdocs-jupyter
- render_swagger:
allow_arbitrary_locations : true
- search
- autorefs
- mkdocstrings:
handlers:
python:
paths: [../python]
selection:
docstring_style: numpy
rendering:
heading_level: 4
show_source: true
show_symbol_type_in_heading: true
show_signature_annotations: true
show_root_heading: true
members_order: source
import:
# for cross references
- https://arrow.apache.org/docs/objects.inv
- https://pandas.pydata.org/docs/objects.inv
- mkdocs-jupyter
markdown_extensions:
- admonition
- footnotes
- pymdownx.details
- pymdownx.highlight:
anchor_linenums: true
line_spans: __span
pygments_lang_class: true
- pymdownx.inlinehilite
- pymdownx.snippets:
base_path: ..
dedent_subsections: true
- pymdownx.superfences
- pymdownx.tabbed:
alternate_style: true
- md_in_html
- attr_list
- admonition
- footnotes
- pymdownx.superfences
- pymdownx.details
- pymdownx.highlight:
anchor_linenums: true
line_spans: __span
pygments_lang_class: true
- pymdownx.inlinehilite
- pymdownx.snippets
- pymdownx.superfences
- pymdownx.tabbed:
alternate_style: true
- md_in_html
nav:
- Home:
- LanceDB: index.md
- 🏃🏼‍♂️ Quick start: basic.md
- 📚 Concepts:
- Vector search: concepts/vector_search.md
- Indexing: concepts/index_ivfpq.md
- Storage: concepts/storage.md
- Data management: concepts/data_management.md
- 🔨 Guides:
- Working with tables: guides/tables.md
- Building an ANN index: ann_indexes.md
- Vector Search: search.md
- Full-text search: fts.md
- Hybrid search:
- Overview: hybrid_search/hybrid_search.md
- Comparing Rerankers: hybrid_search/eval.md
- Airbnb financial data example: notebooks/hybrid_search.ipynb
- Reranking:
- Quickstart: reranking/index.md
- Cohere Reranker: reranking/cohere.md
- Linear Combination Reranker: reranking/linear_combination.md
- Cross Encoder Reranker: reranking/cross_encoder.md
- ColBERT Reranker: reranking/colbert.md
- Jina Reranker: reranking/jina.md
- OpenAI Reranker: reranking/openai.md
- Building Custom Rerankers: reranking/custom_reranker.md
- Example: notebooks/lancedb_reranking.ipynb
- Filtering: sql.md
- Versioning & Reproducibility: notebooks/reproducibility.ipynb
- Configuring Storage: guides/storage.md
- Migration Guide: migration.md
- Tuning retrieval performance:
- Choosing right query type: guides/tuning_retrievers/1_query_types.md
- Reranking: guides/tuning_retrievers/2_reranking.md
- Embedding fine-tuning: guides/tuning_retrievers/3_embed_tuning.md
- 🧬 Managing embeddings:
- Overview: embeddings/index.md
- Embedding functions: embeddings/embedding_functions.md
- Available models: embeddings/default_embedding_functions.md
- User-defined embedding functions: embeddings/custom_embedding_function.md
- "Example: Multi-lingual semantic search": notebooks/multi_lingual_example.ipynb
- "Example: MultiModal CLIP Embeddings": notebooks/DisappearingEmbeddingFunction.ipynb
- 🔌 Integrations:
- Tools and data formats: integrations/index.md
- Pandas and PyArrow: python/pandas_and_pyarrow.md
- Polars: python/polars_arrow.md
- DuckDB: python/duckdb.md
- LangChain:
- LangChain 🔗: integrations/langchain.md
- LangChain demo: notebooks/langchain_demo.ipynb
- LangChain JS/TS 🔗: https://js.langchain.com/docs/integrations/vectorstores/lancedb
- LlamaIndex 🦙:
- LlamaIndex docs: integrations/llamaIndex.md
- LlamaIndex demo: notebooks/llamaIndex_demo.ipynb
- Pydantic: python/pydantic.md
- Voxel51: integrations/voxel51.md
- PromptTools: integrations/prompttools.md
- 🎯 Examples:
- Overview: examples/index.md
- 🐍 Python:
- Overview: examples/examples_python.md
- YouTube Transcript Search: notebooks/youtube_transcript_search.ipynb
- Documentation QA Bot using LangChain: notebooks/code_qa_bot.ipynb
- Multimodal search using CLIP: notebooks/multimodal_search.ipynb
- Example - Calculate CLIP Embeddings with Roboflow Inference: examples/image_embeddings_roboflow.md
- Serverless QA Bot with S3 and Lambda: examples/serverless_lancedb_with_s3_and_lambda.md
- Serverless QA Bot with Modal: examples/serverless_qa_bot_with_modal_and_langchain.md
- 👾 JavaScript:
- Overview: examples/examples_js.md
- Serverless Website Chatbot: examples/serverless_website_chatbot.md
- YouTube Transcript Search: examples/youtube_transcript_bot_with_nodejs.md
- TransformersJS Embedding Search: examples/transformerjs_embedding_search_nodejs.md
- 🦀 Rust:
- Overview: examples/examples_rust.md
- 💭 FAQs: faq.md
- ⚙️ API reference:
- 🐍 Python: python/python.md
- 👾 JavaScript (vectordb): javascript/modules.md
- 👾 JavaScript (lancedb): javascript/modules.md
- 🦀 Rust: https://docs.rs/lancedb/latest/lancedb/
- ☁️ LanceDB Cloud:
- Overview: cloud/index.md
- API reference:
- 🐍 Python: python/saas-python.md
- 👾 JavaScript: javascript/modules.md
- REST API: cloud/rest.md
- Home:
- 🏢 Home: index.md
- 💡 Basics: basic.md
- 📚 Guides:
- Create Ingest Update Delete: guides/tables.md
- Vector Search: search.md
- SQL filters: sql.md
- Indexing: ann_indexes.md
- Versioning & Reproducibility: notebooks/reproducibility.ipynb
- 🧬 Embeddings:
- embeddings/index.md
- Ingest Embedding Functions: embeddings/embedding_functions.md
- Available Functions: embeddings/default_embedding_functions.md
- Create Custom Embedding Functions: embeddings/api.md
- Example - Multi-lingual semantic search: notebooks/multi_lingual_example.ipynb
- Example - MultiModal CLIP Embeddings: notebooks/DisappearingEmbeddingFunction.ipynb
- 🔍 Python full-text search: fts.md
- 🔌 Integrations:
- integrations/index.md
- Pandas and PyArrow: python/arrow.md
- DuckDB: python/duckdb.md
- LangChain 🔗: https://python.langchain.com/en/latest/modules/indexes/vectorstores/examples/lancedb.html
- LangChain JS/TS 🔗: https://js.langchain.com/docs/modules/data_connection/vectorstores/integrations/lancedb
- LlamaIndex 🦙: https://gpt-index.readthedocs.io/en/latest/examples/vector_stores/LanceDBIndexDemo.html
- Pydantic: python/pydantic.md
- Voxel51: integrations/voxel51.md
- PromptTools: integrations/prompttools.md
- 🐍 Python examples:
- examples/index.md
- YouTube Transcript Search: notebooks/youtube_transcript_search.ipynb
- Documentation QA Bot using LangChain: notebooks/code_qa_bot.ipynb
- Multimodal search using CLIP: notebooks/multimodal_search.ipynb
- Example - Calculate CLIP Embeddings with Roboflow Inference: examples/image_embeddings_roboflow.md
- Serverless QA Bot with S3 and Lambda: examples/serverless_lancedb_with_s3_and_lambda.md
- Serverless QA Bot with Modal: examples/serverless_qa_bot_with_modal_and_langchain.md
- 🌐 Javascript examples:
- Examples: examples/index_js.md
- Serverless Website Chatbot: examples/serverless_website_chatbot.md
- YouTube Transcript Search: examples/youtube_transcript_bot_with_nodejs.md
- TransformersJS Embedding Search: examples/transformerjs_embedding_search_nodejs.md
- ⚙️ CLI & Config: cli_config.md
- Quick start: basic.md
- Concepts:
- Vector search: concepts/vector_search.md
- Indexing: concepts/index_ivfpq.md
- Storage: concepts/storage.md
- Data management: concepts/data_management.md
- Guides:
- Working with tables: guides/tables.md
- Building an ANN index: ann_indexes.md
- Vector Search: search.md
- Full-text search: fts.md
- Hybrid search:
- Overview: hybrid_search/hybrid_search.md
- Comparing Rerankers: hybrid_search/eval.md
- Airbnb financial data example: notebooks/hybrid_search.ipynb
- Reranking:
- Quickstart: reranking/index.md
- Cohere Reranker: reranking/cohere.md
- Linear Combination Reranker: reranking/linear_combination.md
- Cross Encoder Reranker: reranking/cross_encoder.md
- ColBERT Reranker: reranking/colbert.md
- Jina Reranker: reranking/jina.md
- OpenAI Reranker: reranking/openai.md
- Building Custom Rerankers: reranking/custom_reranker.md
- Example: notebooks/lancedb_reranking.ipynb
- Filtering: sql.md
- Versioning & Reproducibility: notebooks/reproducibility.ipynb
- Configuring Storage: guides/storage.md
- Migration Guide: migration.md
- Tuning retrieval performance:
- Choosing right query type: guides/tuning_retrievers/1_query_types.md
- Reranking: guides/tuning_retrievers/2_reranking.md
- Embedding fine-tuning: guides/tuning_retrievers/3_embed_tuning.md
- Managing Embeddings:
- Overview: embeddings/index.md
- Embedding functions: embeddings/embedding_functions.md
- Available models: embeddings/default_embedding_functions.md
- User-defined embedding functions: embeddings/custom_embedding_function.md
- "Example: Multi-lingual semantic search": notebooks/multi_lingual_example.ipynb
- "Example: MultiModal CLIP Embeddings": notebooks/DisappearingEmbeddingFunction.ipynb
- Integrations:
- Overview: integrations/index.md
- Pandas and PyArrow: python/pandas_and_pyarrow.md
- Polars: python/polars_arrow.md
- DuckDB: python/duckdb.md
- LangChain 🦜️🔗↗: integrations/langchain.md
- LangChain.js 🦜️🔗↗: https://js.langchain.com/docs/integrations/vectorstores/lancedb
- LlamaIndex 🦙↗: integrations/llamaIndex.md
- Pydantic: python/pydantic.md
- Voxel51: integrations/voxel51.md
- PromptTools: integrations/prompttools.md
- Examples:
- examples/index.md
- YouTube Transcript Search: notebooks/youtube_transcript_search.ipynb
- Documentation QA Bot using LangChain: notebooks/code_qa_bot.ipynb
- Multimodal search using CLIP: notebooks/multimodal_search.ipynb
- Serverless QA Bot with S3 and Lambda: examples/serverless_lancedb_with_s3_and_lambda.md
- Serverless QA Bot with Modal: examples/serverless_qa_bot_with_modal_and_langchain.md
- YouTube Transcript Search (JS): examples/youtube_transcript_bot_with_nodejs.md
- Serverless Chatbot from any website: examples/serverless_website_chatbot.md
- TransformersJS Embedding Search: examples/transformerjs_embedding_search_nodejs.md
- API reference:
- Overview: api_reference.md
- Python: python/python.md
- Javascript (vectordb): javascript/modules.md
- Javascript (lancedb): js/modules.md
- Rust: https://docs.rs/lancedb/latest/lancedb/index.html
- LanceDB Cloud:
- Overview: cloud/index.md
- API reference:
- 🐍 Python: python/saas-python.md
- 👾 JavaScript: javascript/modules.md
- REST API: cloud/rest.md
- Basics: basic.md
- Guides:
- Create Ingest Update Delete: guides/tables.md
- Vector Search: search.md
- SQL filters: sql.md
- Indexing: ann_indexes.md
- Versioning & Reproducibility: notebooks/reproducibility.ipynb
- Embeddings:
- embeddings/index.md
- Ingest Embedding Functions: embeddings/embedding_functions.md
- Available Functions: embeddings/default_embedding_functions.md
- Create Custom Embedding Functions: embeddings/api.md
- Example - Multi-lingual semantic search: notebooks/multi_lingual_example.ipynb
- Example - MultiModal CLIP Embeddings: notebooks/DisappearingEmbeddingFunction.ipynb
- Python full-text search: fts.md
- Integrations:
- integrations/index.md
- Pandas and PyArrow: python/arrow.md
- DuckDB: python/duckdb.md
- LangChain 🦜️🔗: https://python.langchain.com/en/latest/modules/indexes/vectorstores/examples/lancedb.html
- LangChain JS/TS 🦜️🔗: https://js.langchain.com/docs/modules/data_connection/vectorstores/integrations/lancedb
- LlamaIndex 🦙: https://gpt-index.readthedocs.io/en/latest/examples/vector_stores/LanceDBIndexDemo.html
- Pydantic: python/pydantic.md
- Voxel51: integrations/voxel51.md
- PromptTools: integrations/prompttools.md
- Python examples:
- examples/index.md
- YouTube Transcript Search: notebooks/youtube_transcript_search.ipynb
- Documentation QA Bot using LangChain: notebooks/code_qa_bot.ipynb
- Multimodal search using CLIP: notebooks/multimodal_search.ipynb
- Serverless QA Bot with S3 and Lambda: examples/serverless_lancedb_with_s3_and_lambda.md
- Serverless QA Bot with Modal: examples/serverless_qa_bot_with_modal_and_langchain.md
- Javascript examples:
- examples/index_js.md
- YouTube Transcript Search: examples/youtube_transcript_bot_with_nodejs.md
- Serverless Chatbot from any website: examples/serverless_website_chatbot.md
- TransformersJS Embedding Search: examples/transformerjs_embedding_search_nodejs.md
- API references:
- OSS Python API: python/python.md
- SaaS Python API: python/saas-python.md
- Javascript API: javascript/modules.md
- LanceDB Cloud↗: https://noteforms.com/forms/lancedb-mailing-list-cloud-kty1o5?notionforms=1&utm_source=notionforms
extra_css:
- styles/global.css
- styles/extra.css
extra_javascript:
- "extra_js/init_ask_ai_widget.js"
extra:
analytics:
provider: google
property: G-B7NFM40W74
social:
- icon: fontawesome/brands/github
link: https://github.com/lancedb/lancedb
- icon: fontawesome/brands/x-twitter
link: https://twitter.com/lancedb
- icon: fontawesome/brands/linkedin
link: https://www.linkedin.com/company/lancedb

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@@ -1,487 +0,0 @@
openapi: 3.1.0
info:
version: 1.0.0
title: LanceDB Cloud API
description: |
LanceDB Cloud API is a RESTful API that allows users to access and modify data stored in LanceDB Cloud.
Table actions are considered temporary resource creations and all use POST method.
contact:
name: LanceDB support
url: https://lancedb.com
email: contact@lancedb.com
servers:
- url: https://{db}.{region}.api.lancedb.com
description: LanceDB Cloud REST endpoint.
variables:
db:
default: ""
description: the name of DB
region:
default: "us-east-1"
description: the service region of the DB
security:
- key_auth: []
components:
securitySchemes:
key_auth:
name: x-api-key
type: apiKey
in: header
parameters:
table_name:
name: name
in: path
description: name of the table
required: true
schema:
type: string
responses:
invalid_request:
description: Invalid request
content:
text/plain:
schema:
type: string
not_found:
description: Not found
content:
text/plain:
schema:
type: string
unauthorized:
description: Unauthorized
content:
text/plain:
schema:
type: string
requestBodies:
arrow_stream_buffer:
description: Arrow IPC stream buffer
required: true
content:
application/vnd.apache.arrow.stream:
schema:
type: string
format: binary
paths:
/v1/table/:
get:
description: List tables, optionally, with pagination.
tags:
- Tables
summary: List Tables
operationId: listTables
parameters:
- name: limit
in: query
description: Limits the number of items to return.
schema:
type: integer
- name: page_token
in: query
description: Specifies the starting position of the next query
schema:
type: string
responses:
"200":
description: Successfully returned a list of tables in the DB
content:
application/json:
schema:
type: object
properties:
tables:
type: array
items:
type: string
page_token:
type: string
"400":
$ref: "#/components/responses/invalid_request"
"401":
$ref: "#/components/responses/unauthorized"
"404":
$ref: "#/components/responses/not_found"
/v1/table/{name}/create/:
post:
description: Create a new table
summary: Create a new table
operationId: createTable
tags:
- Tables
parameters:
- $ref: "#/components/parameters/table_name"
requestBody:
$ref: "#/components/requestBodies/arrow_stream_buffer"
responses:
"200":
description: Table successfully created
"400":
$ref: "#/components/responses/invalid_request"
"401":
$ref: "#/components/responses/unauthorized"
"404":
$ref: "#/components/responses/not_found"
/v1/table/{name}/query/:
post:
description: Vector Query
url: https://{db-uri}.{aws-region}.api.lancedb.com/v1/table/{name}/query/
tags:
- Data
summary: Vector Query
parameters:
- $ref: "#/components/parameters/table_name"
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
vector:
type: FixedSizeList
description: |
The targetted vector to search for. Required.
vector_column:
type: string
description: |
The column to query, it can be inferred from the schema if there is only one vector column.
prefilter:
type: boolean
description: |
Whether to prefilter the data. Optional.
k:
type: integer
description: |
The number of search results to return. Default is 10.
distance_type:
type: string
description: |
The distance metric to use for search. L2, Cosine, Dot and Hamming are supported. Default is L2.
bypass_vector_index:
type: boolean
description: |
Whether to bypass vector index. Optional.
filter:
type: string
description: |
A filter expression that specifies the rows to query. Optional.
columns:
type: array
items:
type: string
description: |
The columns to return. Optional.
nprobe:
type: integer
description: |
The number of probes to use for search. Optional.
refine_factor:
type: integer
description: |
The refine factor to use for search. Optional.
default: null
fast_search:
type: boolean
description: |
Whether to use fast search. Optional.
default: false
required:
- vector
responses:
"200":
description: top k results if query is successfully executed
content:
application/json:
schema:
type: object
properties:
results:
type: array
items:
type: object
properties:
id:
type: integer
selected_col_1_to_return:
type: col_1_type
selected_col_n_to_return:
type: col_n_type
_distance:
type: float
"400":
$ref: "#/components/responses/invalid_request"
"401":
$ref: "#/components/responses/unauthorized"
"404":
$ref: "#/components/responses/not_found"
/v1/table/{name}/insert/:
post:
description: Insert new data to the Table.
tags:
- Data
operationId: insertData
summary: Insert new data.
parameters:
- $ref: "#/components/parameters/table_name"
requestBody:
$ref: "#/components/requestBodies/arrow_stream_buffer"
responses:
"200":
description: Insert successful
"400":
$ref: "#/components/responses/invalid_request"
"401":
$ref: "#/components/responses/unauthorized"
"404":
$ref: "#/components/responses/not_found"
/v1/table/{name}/merge_insert/:
post:
description: Create a "merge insert" operation
This operation can add rows, update rows, and remove rows all in a single
transaction. See python method `lancedb.table.Table.merge_insert` for examples.
tags:
- Data
summary: Merge Insert
operationId: mergeInsert
parameters:
- $ref: "#/components/parameters/table_name"
- name: on
in: query
description: |
The column to use as the primary key for the merge operation.
required: true
schema:
type: string
- name: when_matched_update_all
in: query
description: |
Rows that exist in both the source table (new data) and
the target table (old data) will be updated, replacing
the old row with the corresponding matching row.
required: false
schema:
type: boolean
- name: when_matched_update_all_filt
in: query
description: |
If present then only rows that satisfy the filter expression will
be updated
required: false
schema:
type: string
- name: when_not_matched_insert_all
in: query
description: |
Rows that exist only in the source table (new data) will be
inserted into the target table (old data).
required: false
schema:
type: boolean
- name: when_not_matched_by_source_delete
in: query
description: |
Rows that exist only in the target table (old data) will be
deleted. An optional condition (`when_not_matched_by_source_delete_filt`)
can be provided to limit what data is deleted.
required: false
schema:
type: boolean
- name: when_not_matched_by_source_delete_filt
in: query
description: |
The filter expression that specifies the rows to delete.
required: false
schema:
type: string
requestBody:
$ref: "#/components/requestBodies/arrow_stream_buffer"
responses:
"200":
description: Merge Insert successful
"400":
$ref: "#/components/responses/invalid_request"
"401":
$ref: "#/components/responses/unauthorized"
"404":
$ref: "#/components/responses/not_found"
/v1/table/{name}/delete/:
post:
description: Delete rows from a table.
tags:
- Data
summary: Delete rows from a table
operationId: deleteData
parameters:
- $ref: "#/components/parameters/table_name"
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
predicate:
type: string
description: |
A filter expression that specifies the rows to delete.
responses:
"200":
description: Delete successful
"401":
$ref: "#/components/responses/unauthorized"
/v1/table/{name}/drop/:
post:
description: Drop a table
tags:
- Tables
summary: Drop a table
operationId: dropTable
parameters:
- $ref: "#/components/parameters/table_name"
requestBody:
$ref: "#/components/requestBodies/arrow_stream_buffer"
responses:
"200":
description: Drop successful
"401":
$ref: "#/components/responses/unauthorized"
/v1/table/{name}/describe/:
post:
description: Describe a table and return Table Information.
tags:
- Tables
summary: Describe a table
operationId: describeTable
parameters:
- $ref: "#/components/parameters/table_name"
responses:
"200":
description: Table information
content:
application/json:
schema:
type: object
properties:
table:
type: string
version:
type: integer
schema:
type: string
stats:
type: object
"401":
$ref: "#/components/responses/unauthorized"
"404":
$ref: "#/components/responses/not_found"
/v1/table/{name}/index/list/:
post:
description: List indexes of a table
tags:
- Tables
summary: List indexes of a table
operationId: listIndexes
parameters:
- $ref: "#/components/parameters/table_name"
responses:
"200":
description: Available list of indexes on the table.
content:
application/json:
schema:
type: object
properties:
indexes:
type: array
items:
type: object
properties:
columns:
type: array
items:
type: string
index_name:
type: string
index_uuid:
type: string
"401":
$ref: "#/components/responses/unauthorized"
"404":
$ref: "#/components/responses/not_found"
/v1/table/{name}/create_index/:
post:
description: Create vector index on a Table
tags:
- Tables
summary: Create vector index on a Table
operationId: createIndex
parameters:
- $ref: "#/components/parameters/table_name"
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
column:
type: string
metric_type:
type: string
nullable: false
description: |
The metric type to use for the index. L2, Cosine, Dot are supported.
index_type:
type: string
responses:
"200":
description: Index successfully created
"400":
$ref: "#/components/responses/invalid_request"
"401":
$ref: "#/components/responses/unauthorized"
"404":
$ref: "#/components/responses/not_found"
/v1/table/{name}/create_scalar_index/:
post:
description: Create a scalar index on a table
tags:
- Tables
summary: Create a scalar index on a table
operationId: createScalarIndex
parameters:
- $ref: "#/components/parameters/table_name"
requestBody:
required: true
content:
application/json:
schema:
type: object
properties:
column:
type: string
index_type:
type: string
required: false
responses:
"200":
description: Scalar Index successfully created
"400":
$ref: "#/components/responses/invalid_request"
"401":
$ref: "#/components/responses/unauthorized"
"404":
$ref: "#/components/responses/not_found"

132
docs/package-lock.json generated
View File

@@ -1,132 +0,0 @@
{
"name": "lancedb-docs-test",
"version": "1.0.0",
"lockfileVersion": 3,
"requires": true,
"packages": {
"": {
"name": "lancedb-docs-test",
"version": "1.0.0",
"license": "Apache 2",
"dependencies": {
"apache-arrow": "file:../node/node_modules/apache-arrow",
"vectordb": "file:../node"
},
"devDependencies": {
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"typescript": "^5.3.3"
}
},
"../node": {
"name": "vectordb",
"version": "0.4.6",
"cpu": [
"x64",
"arm64"
],
"license": "Apache-2.0",
"os": [
"darwin",
"linux",
"win32"
],
"dependencies": {
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"axios": "^1.4.0"
},
"devDependencies": {
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"@types/mocha": "^10.0.1",
"@types/node": "^18.16.2",
"@types/sinon": "^10.0.15",
"@types/temp": "^0.9.1",
"@types/uuid": "^9.0.3",
"@typescript-eslint/eslint-plugin": "^5.59.1",
"cargo-cp-artifact": "^0.1",
"chai": "^4.3.7",
"chai-as-promised": "^7.1.1",
"eslint": "^8.39.0",
"eslint-config-standard-with-typescript": "^34.0.1",
"eslint-plugin-import": "^2.26.0",
"eslint-plugin-n": "^15.7.0",
"eslint-plugin-promise": "^6.1.1",
"mocha": "^10.2.0",
"openai": "^4.24.1",
"sinon": "^15.1.0",
"temp": "^0.9.4",
"ts-node": "^10.9.1",
"ts-node-dev": "^2.0.0",
"typedoc": "^0.24.7",
"typedoc-plugin-markdown": "^3.15.3",
"typescript": "*",
"uuid": "^9.0.0"
},
"optionalDependencies": {
"@lancedb/vectordb-darwin-arm64": "0.4.6",
"@lancedb/vectordb-darwin-x64": "0.4.6",
"@lancedb/vectordb-linux-arm64-gnu": "0.4.6",
"@lancedb/vectordb-linux-x64-gnu": "0.4.6",
"@lancedb/vectordb-win32-x64-msvc": "0.4.6"
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"../node/node_modules/apache-arrow": {
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"license": "Apache-2.0",
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"@types/command-line-usage": "5.0.2",
"@types/node": "20.3.0",
"@types/pad-left": "2.1.1",
"command-line-args": "5.2.1",
"command-line-usage": "7.0.1",
"flatbuffers": "23.5.26",
"json-bignum": "^0.0.3",
"pad-left": "^2.1.0",
"tslib": "^2.5.3"
},
"bin": {
"arrow2csv": "bin/arrow2csv.js"
}
},
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"dev": true,
"bin": {
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"tsserver": "bin/tsserver"
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"engines": {
"node": ">=14.17"
}
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"dev": true
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"node_modules/vectordb": {
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"link": true
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}
}

View File

@@ -1,20 +0,0 @@
{
"name": "lancedb-docs-test",
"version": "1.0.0",
"description": "auto-generated tests from doc",
"author": "dev@lancedb.com",
"license": "Apache 2",
"dependencies": {
"apache-arrow": "file:../node/node_modules/apache-arrow",
"vectordb": "file:../node"
},
"scripts": {
"build": "tsc -b && cd ../node && npm run build-release",
"example": "npm run build && node",
"test": "npm run build && ls dist/*.js | xargs -n 1 node"
},
"devDependencies": {
"@types/node": "^20.11.8",
"typescript": "^5.3.3"
}
}

View File

@@ -1,6 +1,5 @@
mkdocs==1.5.3
mkdocs==1.4.2
mkdocs-jupyter==0.24.1
mkdocs-material==9.5.3
mkdocs-material==9.1.3
mkdocstrings[python]==0.20.0
mkdocs-render-swagger-plugin
pydantic
pydantic

View File

@@ -1,93 +1,67 @@
# Approximate Nearest Neighbor (ANN) Indexes
# ANN (Approximate Nearest Neighbor) Indexes
An ANN or a vector index is a data structure specifically designed to efficiently organize and
search vector data based on their similarity via the chosen distance metric.
By constructing a vector index, the search space is effectively narrowed down, avoiding the need
for brute-force scanning of the entire vector space.
A vector index is faster but less accurate than exhaustive search (kNN or flat search).
You can create an index over your vector data to make search faster.
Vector indexes are faster but less accurate than exhaustive search (KNN or Flat Search).
LanceDB provides many parameters to fine-tune the index's size, the speed of queries, and the accuracy of results.
## Disk-based Index
Currently, LanceDB does *not* automatically create the ANN index.
LanceDB has optimized code for KNN as well. For many use-cases, datasets under 100K vectors won't require index creation at all.
If you can live with < 100ms latency, skipping index creation is a simpler workflow while guaranteeing 100% recall.
Lance provides an `IVF_PQ` disk-based index. It uses **Inverted File Index (IVF)** to first divide
the dataset into `N` partitions, and then applies **Product Quantization** to compress vectors in each partition.
See the [indexing](concepts/index_ivfpq.md) concepts guide for more information on how this works.
In the future we will look to automatically create and configure the ANN index.
## Types of Index
Lance can support multiple index types, the most widely used one is `IVF_PQ`.
* `IVF_PQ`: use **Inverted File Index (IVF)** to first divide the dataset into `N` partitions,
and then use **Product Quantization** to compress vectors in each partition.
* `DISKANN` (**Experimental**): organize the vector as a on-disk graph, where the vertices approximately
represent the nearest neighbors of each vector.
## Creating an IVF_PQ Index
Lance supports `IVF_PQ` index type by default.
=== "Python"
Creating indexes is done via the [create_index](https://lancedb.github.io/lancedb/python/#lancedb.table.LanceTable.create_index) method.
Creating indexes is done via the [create_index](https://lancedb.github.io/lancedb/python/#lancedb.table.LanceTable.create_index) method.
```python
import lancedb
import numpy as np
uri = "data/sample-lancedb"
db = lancedb.connect(uri)
```python
import lancedb
import numpy as np
uri = "data/sample-lancedb"
db = lancedb.connect(uri)
# Create 10,000 sample vectors
data = [{"vector": row, "item": f"item {i}"}
# Create 10,000 sample vectors
data = [{"vector": row, "item": f"item {i}"}
for i, row in enumerate(np.random.random((10_000, 1536)).astype('float32'))]
# Add the vectors to a table
tbl = db.create_table("my_vectors", data=data)
# Add the vectors to a table
tbl = db.create_table("my_vectors", data=data)
# Create and train the index - you need to have enough data in the table for an effective training step
tbl.create_index(num_partitions=256, num_sub_vectors=96)
```
# Create and train the index - you need to have enough data in the table for an effective training step
tbl.create_index(num_partitions=256, num_sub_vectors=96)
```
=== "TypeScript"
=== "Javascript"
```javascript
const vectordb = require('vectordb')
const db = await vectordb.connect('data/sample-lancedb')
=== "@lancedb/lancedb"
let data = []
for (let i = 0; i < 10_000; i++) {
data.push({vector: Array(1536).fill(i), id: `${i}`, content: "", longId: `${i}`},)
}
const table = await db.createTable('my_vectors', data)
await table.createIndex({ type: 'ivf_pq', column: 'vector', num_partitions: 256, num_sub_vectors: 96 })
```
Creating indexes is done via the [lancedb.Table.createIndex](../js/classes/Table.md/#createIndex) method.
```typescript
--8<--- "nodejs/examples/ann_indexes.ts:import"
--8<-- "nodejs/examples/ann_indexes.ts:ingest"
```
=== "vectordb (deprecated)"
Creating indexes is done via the [lancedb.Table.createIndex](../javascript/interfaces/Table.md/#createIndex) method.
```typescript
--8<--- "docs/src/ann_indexes.ts:import"
--8<-- "docs/src/ann_indexes.ts:ingest"
```
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/ivf_pq.rs:create_index"
```
IVF_PQ index parameters are more fully defined in the [crate docs](https://docs.rs/lancedb/latest/lancedb/index/vector/struct.IvfPqIndexBuilder.html).
The following IVF_PQ paramters can be specified:
- **distance_type**: The distance metric to use. By default it uses euclidean distance "`L2`".
We also support "cosine" and "dot" distance as well.
- **num_partitions**: The number of partitions in the index. The default is the square root
of the number of rows.
!!! note
In the synchronous python SDK and node's `vectordb` the default is 256. This default has
changed in the asynchronous python SDK and node's `lancedb`.
- **num_sub_vectors**: The number of sub-vectors (M) that will be created during Product Quantization (PQ).
For D dimensional vector, it will be divided into `M` subvectors with dimension `D/M`, each of which is replaced by
a single PQ code. The default is the dimension of the vector divided by 16.
!!! note
In the synchronous python SDK and node's `vectordb` the default is currently 96. This default has
changed in the asynchronous python SDK and node's `lancedb`.
- **metric** (default: "L2"): The distance metric to use. By default it uses euclidean distance "`L2`".
We also support "cosine" and "dot" distance as well.
- **num_partitions** (default: 256): The number of partitions of the index.
- **num_sub_vectors** (default: 96): The number of sub-vectors (M) that will be created during Product Quantization (PQ).
For D dimensional vector, it will be divided into `M` of `D/M` sub-vectors, each of which is presented by
a single PQ code.
<figure markdown>
![IVF PQ](./assets/ivf_pq.png)
@@ -101,37 +75,38 @@ Using GPU for index creation requires [PyTorch>2.0](https://pytorch.org/) being
You can specify the GPU device to train IVF partitions via
- **accelerator**: Specify to `cuda` or `mps` (on Apple Silicon) to enable GPU training.
- **accelerator**: Specify to ``cuda`` or ``mps`` (on Apple Silicon) to enable GPU training.
=== "Linux"
<!-- skip-test -->
``` { .python .copy }
# Create index using CUDA on Nvidia GPUs.
tbl.create_index(
num_partitions=256,
num_sub_vectors=96,
accelerator="cuda"
)
```
<!-- skip-test -->
``` { .python .copy }
# Create index using CUDA on Nvidia GPUs.
tbl.create_index(
num_partitions=256,
num_sub_vectors=96,
accelerator="cuda"
)
```
=== "MacOS"
=== "Macos"
<!-- skip-test -->
```python
# Create index using MPS on Apple Silicon.
tbl.create_index(
num_partitions=256,
num_sub_vectors=96,
accelerator="mps"
)
```
<!-- skip-test -->
```python
# Create index using MPS on Apple Silicon.
tbl.create_index(
num_partitions=256,
num_sub_vectors=96,
accelerator="mps"
)
```
Troubleshooting:
Trouble shootings:
If you see `AssertionError: Torch not compiled with CUDA enabled`, you need to [install
If you see ``AssertionError: Torch not compiled with CUDA enabled``, you need to [install
PyTorch with CUDA support](https://pytorch.org/get-started/locally/).
## Querying an ANN Index
Querying vector indexes is done via the [search](https://lancedb.github.io/lancedb/python/#lancedb.table.LanceTable.search) function.
@@ -149,118 +124,81 @@ There are a couple of parameters that can be used to fine-tune the search:
Note: refine_factor is only applicable if an ANN index is present. If specified on a table without an ANN index, it is ignored.
=== "Python"
```python
tbl.search(np.random.random((1536))) \
.limit(2) \
.nprobes(20) \
.refine_factor(10) \
.to_pandas()
```
```text
```python
tbl.search(np.random.random((1536))) \
.limit(2) \
.nprobes(20) \
.refine_factor(10) \
.to_pandas()
```
```
vector item _distance
0 [0.44949695, 0.8444449, 0.06281311, 0.23338133... item 1141 103.575333
1 [0.48587373, 0.269207, 0.15095535, 0.65531915,... item 3953 108.393867
```
0 [0.44949695, 0.8444449, 0.06281311, 0.23338133... item 1141 103.575333
1 [0.48587373, 0.269207, 0.15095535, 0.65531915,... item 3953 108.393867
```
=== "TypeScript"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/ann_indexes.ts:search1"
```
=== "vectordb (deprecated)"
```typescript
--8<-- "docs/src/ann_indexes.ts:search1"
```
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/ivf_pq.rs:search1"
```
Vector search options are more fully defined in the [crate docs](https://docs.rs/lancedb/latest/lancedb/query/struct.Query.html#method.nearest_to).
=== "Javascript"
```javascript
const results_1 = await table
.search(Array(1536).fill(1.2))
.limit(2)
.nprobes(20)
.refineFactor(10)
.execute()
```
The search will return the data requested in addition to the distance of each item.
### Filtering (where clause)
You can further filter the elements returned by a search using a where clause.
=== "Python"
```python
tbl.search(np.random.random((1536))).where("item != 'item 1141'").to_pandas()
```
```python
tbl.search(np.random.random((1536))).where("item != 'item 1141'").to_pandas()
```
=== "TypeScript"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/ann_indexes.ts:search2"
```
=== "vectordb (deprecated)"
```javascript
--8<-- "docs/src/ann_indexes.ts:search2"
```
=== "Javascript"
```javascript
const results_2 = await table
.search(Array(1536).fill(1.2))
.where("id != '1141'")
.execute()
```
### Projections (select clause)
You can select the columns returned by the query using a select clause.
=== "Python"
```python
tbl.search(np.random.random((1536))).select(["vector"]).to_pandas()
```
```
vector _distance
0 [0.30928212, 0.022668175, 0.1756372, 0.4911822... 93.971092
1 [0.2525465, 0.01723831, 0.261568, 0.002007689,... 95.173485
...
```
```python
tbl.search(np.random.random((1536))).select(["vector"]).to_pandas()
```
```text
vector _distance
0 [0.30928212, 0.022668175, 0.1756372, 0.4911822... 93.971092
1 [0.2525465, 0.01723831, 0.261568, 0.002007689,... 95.173485
...
```
=== "TypeScript"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/ann_indexes.ts:search3"
```
=== "vectordb (deprecated)"
```typescript
--8<-- "docs/src/ann_indexes.ts:search3"
```
=== "Javascript"
```javascript
const results_3 = await table
.search(Array(1536).fill(1.2))
.select(["id"])
.execute()
```
## FAQ
### Why do I need to manually create an index?
Currently, LanceDB does _not_ automatically create the ANN index.
LanceDB is well-optimized for kNN (exhaustive search) via a disk-based index. For many use-cases,
datasets of the order of ~100K vectors don't require index creation. If you can live with up to
100ms latency, skipping index creation is a simpler workflow while guaranteeing 100% recall.
### When is it necessary to create an ANN vector index?
`LanceDB` comes out-of-the-box with highly optimized SIMD code for computing vector similarity.
In our benchmarks, computing distances for 100K pairs of 1K dimension vectors takes **less than 20ms**.
We observe that for small datasets (~100K rows) or for applications that can accept 100ms latency,
vector indices are usually not necessary.
`LanceDB` has manually-tuned SIMD code for computing vector distances.
In our benchmarks, computing 100K pairs of 1K dimension vectors takes **less than 20ms**.
For small datasets (< 100K rows) or applications that can accept 100ms latency, vector indices are usually not necessary.
For large-scale or higher dimension vectors, it can beneficial to create vector index for performance.
For large-scale or higher dimension vectors, it is beneficial to create vector index.
### How big is my index, and how many memory will it take?
@@ -278,4 +216,4 @@ On `SIFT-1M` dataset, our benchmark shows that keeping each partition 1K-4K rows
`num_sub_vectors` specifies how many Product Quantization (PQ) short codes to generate on each vector. Because
PQ is a lossy compression of the original vector, a higher `num_sub_vectors` usually results in
less space distortion, and thus yields better accuracy. However, a higher `num_sub_vectors` also causes heavier I/O and
more PQ computation, and thus, higher latency. `dimension / num_sub_vectors` should be a multiple of 8 for optimum SIMD efficiency.
more PQ computation, and thus, higher latency. `dimension / num_sub_vectors` should be a multiple of 8 for optimum SIMD efficiency.

View File

@@ -1,53 +0,0 @@
// --8<-- [start:import]
import * as vectordb from "vectordb";
// --8<-- [end:import]
(async () => {
// --8<-- [start:ingest]
const db = await vectordb.connect("data/sample-lancedb");
let data = [];
for (let i = 0; i < 10_000; i++) {
data.push({
vector: Array(1536).fill(i),
id: `${i}`,
content: "",
longId: `${i}`,
});
}
const table = await db.createTable("my_vectors", data);
await table.createIndex({
type: "ivf_pq",
column: "vector",
num_partitions: 16,
num_sub_vectors: 48,
});
// --8<-- [end:ingest]
// --8<-- [start:search1]
const results_1 = await table
.search(Array(1536).fill(1.2))
.limit(2)
.nprobes(20)
.refineFactor(10)
.execute();
// --8<-- [end:search1]
// --8<-- [start:search2]
const results_2 = await table
.search(Array(1536).fill(1.2))
.where("id != '1141'")
.limit(2)
.execute();
// --8<-- [end:search2]
// --8<-- [start:search3]
const results_3 = await table
.search(Array(1536).fill(1.2))
.select(["id"])
.limit(2)
.execute();
// --8<-- [end:search3]
console.log("Ann indexes: done");
})();

View File

@@ -1,8 +0,0 @@
# API Reference
The API reference for the LanceDB client SDKs are available at the following locations:
- [Python](python/python.md)
- [JavaScript (legacy vectordb package)](javascript/modules.md)
- [JavaScript (newer @lancedb/lancedb package)](js/modules.md)
- [Rust](https://docs.rs/lancedb/latest/lancedb/index.html)

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@@ -1,566 +1,233 @@
# Quick start
# Basic LanceDB Functionality
!!! info "LanceDB can be run in a number of ways:"
We'll cover the basics of using LanceDB on your local machine in this section.
* Embedded within an existing backend (like your Django, Flask, Node.js or FastAPI application)
* Directly from a client application like a Jupyter notebook for analytical workloads
* Deployed as a remote serverless database
??? info "LanceDB runs embedded on your backend application, so there is no need to run a separate server."
![](assets/lancedb_embedded_explanation.png)
<img src="../assets/lancedb_embedded_explanation.png" width="650px" />
## Installation
=== "Python"
```shell
pip install lancedb
```
=== "Typescript[^1]"
=== "@lancedb/lancedb"
```shell
npm install @lancedb/lancedb
```
!!! note "Bundling `@lancedb/lancedb` apps with Webpack"
Since LanceDB contains a prebuilt Node binary, you must configure `next.config.js` to exclude it from webpack. This is required for both using Next.js and deploying a LanceDB app on Vercel.
```javascript
/** @type {import('next').NextConfig} */
module.exports = ({
webpack(config) {
config.externals.push({ '@lancedb/lancedb': '@lancedb/lancedb' })
return config;
}
})
```
=== "vectordb (deprecated)"
```shell
npm install vectordb
```
!!! note "Bundling `vectordb` apps with Webpack"
Since LanceDB contains a prebuilt Node binary, you must configure `next.config.js` to exclude it from webpack. This is required for both using Next.js and deploying a LanceDB app on Vercel.
```javascript
/** @type {import('next').NextConfig} */
module.exports = ({
webpack(config) {
config.externals.push({ vectordb: 'vectordb' })
return config;
}
})
```
=== "Rust"
```shell
cargo add lancedb
```
!!! info "To use the lancedb create, you first need to install protobuf."
=== "macOS"
```shell
brew install protobuf
```
=== "Ubuntu/Debian"
```shell
sudo apt install -y protobuf-compiler libssl-dev
```
!!! info "Please also make sure you're using the same version of Arrow as in the [lancedb crate](https://github.com/lancedb/lancedb/blob/main/Cargo.toml)"
### Preview releases
Stable releases are created about every 2 weeks. For the latest features and bug
fixes, you can install the preview release. These releases receive the same
level of testing as stable releases, but are not guaranteed to be available for
more than 6 months after they are released. Once your application is stable, we
recommend switching to stable releases.
=== "Python"
=== "Javascript"
```shell
pip install --pre --extra-index-url https://pypi.fury.io/lancedb/ lancedb
npm install vectordb
```
=== "Typescript[^1]"
=== "@lancedb/lancedb"
```shell
npm install @lancedb/lancedb@preview
```
=== "vectordb (deprecated)"
```shell
npm install vectordb@preview
```
=== "Rust"
We don't push preview releases to crates.io, but you can referent the tag
in GitHub within your Cargo dependencies:
```toml
[dependencies]
lancedb = { git = "https://github.com/lancedb/lancedb.git", tag = "vX.Y.Z-beta.N" }
```
## Connect to a database
## How to connect to a database
=== "Python"
```python
import lancedb
uri = "data/sample-lancedb"
db = lancedb.connect(uri)
```
```python
--8<-- "python/python/tests/docs/test_basic.py:imports"
--8<-- "python/python/tests/docs/test_basic.py:connect"
LanceDB will create the directory if it doesn't exist (including parent directories).
--8<-- "python/python/tests/docs/test_basic.py:connect_async"
```
If you need a reminder of the uri, use the `db.uri` property.
!!! note "Asynchronous Python API"
=== "Javascript"
```javascript
const lancedb = require("vectordb");
The asynchronous Python API is new and has some slight differences compared
to the synchronous API. Feel free to start using the asynchronous version.
Once all features have migrated we will start to move the synchronous API to
use the same syntax as the asynchronous API. To help with this migration we
have created a [migration guide](migration.md) detailing the differences.
const uri = "data/sample-lancedb";
const db = await lancedb.connect(uri);
```
LanceDB will create the directory if it doesn't exist (including parent directories).
=== "Typescript[^1]"
If you need a reminder of the uri, you can call `db.uri()`.
=== "@lancedb/lancedb"
```typescript
import * as lancedb from "@lancedb/lancedb";
import * as arrow from "apache-arrow";
--8<-- "nodejs/examples/basic.ts:connect"
```
=== "vectordb (deprecated)"
```typescript
--8<-- "docs/src/basic_legacy.ts:open_db"
```
=== "Rust"
```rust
#[tokio::main]
async fn main() -> Result<()> {
--8<-- "rust/lancedb/examples/simple.rs:connect"
}
```
!!! info "See [examples/simple.rs](https://github.com/lancedb/lancedb/tree/main/rust/lancedb/examples/simple.rs) for a full working example."
LanceDB will create the directory if it doesn't exist (including parent directories).
If you need a reminder of the uri, you can call `db.uri()`.
## Create a table
### Create a table from initial data
If you have data to insert into the table at creation time, you can simultaneously create a
table and insert the data into it. The schema of the data will be used as the schema of the
table.
## How to create a table
=== "Python"
```python
tbl = db.create_table("my_table",
data=[{"vector": [3.1, 4.1], "item": "foo", "price": 10.0},
{"vector": [5.9, 26.5], "item": "bar", "price": 20.0}])
```
```python
--8<-- "python/python/tests/docs/test_basic.py:create_table"
--8<-- "python/python/tests/docs/test_basic.py:create_table_async"
```
If the table already exists, LanceDB will raise an error by default.
If you want to overwrite the table, you can pass in `mode="overwrite"`
to the `create_table` method.
If the table already exists, LanceDB will raise an error by default.
If you want to overwrite the table, you can pass in `mode="overwrite"`
to the `create_table` method.
You can also pass in a pandas DataFrame directly:
```python
import pandas as pd
df = pd.DataFrame([{"vector": [3.1, 4.1], "item": "foo", "price": 10.0},
{"vector": [5.9, 26.5], "item": "bar", "price": 20.0}])
tbl = db.create_table("table_from_df", data=df)
```
You can also pass in a pandas DataFrame directly:
!!! warning
```python
--8<-- "python/python/tests/docs/test_basic.py:create_table_pandas"
--8<-- "python/python/tests/docs/test_basic.py:create_table_async_pandas"
```
If the table already exists, LanceDB will raise an error by default.
If you want to overwrite the table, you can pass in `mode="overwrite"`
to the `createTable` function.
=== "Typescript[^1]"
=== "Javascript"
```javascript
const tb = await db.createTable(
"myTable",
[{"vector": [3.1, 4.1], "item": "foo", "price": 10.0},
{"vector": [5.9, 26.5], "item": "bar", "price": 20.0}])
```
=== "@lancedb/lancedb"
!!! warning
```typescript
--8<-- "nodejs/examples/basic.ts:create_table"
```
If the table already exists, LanceDB will raise an error by default.
If you want to overwrite the table, you can pass in `"overwrite"`
to the `createTable` function like this: `await con.createTable(tableName, data, { writeMode: WriteMode.Overwrite })`
=== "vectordb (deprecated)"
??? info "Under the hood, LanceDB is converting the input data into an Apache Arrow table and persisting it to disk in [Lance format](https://www.github.com/lancedb/lance)."
```typescript
--8<-- "docs/src/basic_legacy.ts:create_table"
```
If the table already exists, LanceDB will raise an error by default.
If you want to overwrite the table, you can pass in `mode:"overwrite"`
to the `createTable` function.
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/simple.rs:create_table"
```
If the table already exists, LanceDB will raise an error by default. See
[the mode option](https://docs.rs/lancedb/latest/lancedb/connection/struct.CreateTableBuilder.html#method.mode)
for details on how to overwrite (or open) existing tables instead.
!!! Providing table records in Rust
The Rust SDK currently expects data to be provided as an Arrow
[RecordBatchReader](https://docs.rs/arrow-array/latest/arrow_array/trait.RecordBatchReader.html)
Support for additional formats (such as serde or polars) is on the roadmap.
!!! info "Under the hood, LanceDB reads in the Apache Arrow data and persists it to disk using the [Lance format](https://www.github.com/lancedb/lance)."
!!! info "Automatic embedding generation with Embedding API"
When working with embedding models, it is recommended to use the LanceDB embedding API to automatically create vector representation of the data and queries in the background. See the [quickstart example](#using-the-embedding-api) or the embedding API [guide](./embeddings/)
### Create an empty table
### Creating an empty table
Sometimes you may not have the data to insert into the table at creation time.
In this case, you can create an empty table and specify the schema, so that you can add
data to the table at a later time (as long as it conforms to the schema). This is
similar to a `CREATE TABLE` statement in SQL.
In this case, you can create an empty table and specify the schema.
=== "Python"
```python
--8<-- "python/python/tests/docs/test_basic.py:create_empty_table"
--8<-- "python/python/tests/docs/test_basic.py:create_empty_table_async"
import pyarrow as pa
schema = pa.schema([pa.field("vector", pa.list_(pa.float32(), list_size=2))])
tbl = db.create_table("empty_table", schema=schema)
```
!!! note "You can define schema in Pydantic"
LanceDB comes with Pydantic support, which allows you to define the schema of your data using Pydantic models. This makes it easy to work with LanceDB tables and data. Learn more about all supported types in [tables guide](./guides/tables.md).
## How to open an existing table
=== "Typescript[^1]"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/basic.ts:create_empty_table"
```
=== "vectordb (deprecated)"
```typescript
--8<-- "docs/src/basic_legacy.ts:create_empty_table"
```
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/simple.rs:create_empty_table"
```
## Open an existing table
Once created, you can open a table as follows:
Once created, you can open a table using the following code:
=== "Python"
```python
tbl = db.open_table("my_table")
```
```python
--8<-- "python/python/tests/docs/test_basic.py:open_table"
--8<-- "python/python/tests/docs/test_basic.py:open_table_async"
```
If you forget the name of your table, you can always get a listing of all table names:
=== "Typescript[^1]"
=== "@lancedb/lancedb"
```python
print(db.table_names())
```
```typescript
--8<-- "nodejs/examples/basic.ts:open_table"
```
=== "Javascript"
```javascript
const tbl = await db.openTable("myTable");
```
=== "vectordb (deprecated)"
If you forget the name of your table, you can always get a listing of all table names:
```typescript
const tbl = await db.openTable("myTable");
```
```javascript
console.log(await db.tableNames());
```
## How to add data to a table
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/simple.rs:open_existing_tbl"
```
If you forget the name of your table, you can always get a listing of all table names:
After a table has been created, you can always add more data to it using
=== "Python"
```python
```python
--8<-- "python/python/tests/docs/test_basic.py:table_names"
--8<-- "python/python/tests/docs/test_basic.py:table_names_async"
```
# Option 1: Add a list of dicts to a table
data = [{"vector": [1.3, 1.4], "item": "fizz", "price": 100.0},
{"vector": [9.5, 56.2], "item": "buzz", "price": 200.0}]
tbl.add(data)
=== "Typescript[^1]"
=== "@lancedb/lancedb"
# Option 2: Add a pandas DataFrame to a table
df = pd.DataFrame(data)
tbl.add(data)
```
```typescript
--8<-- "nodejs/examples/basic.ts:table_names"
```
=== "Javascript"
```javascript
await tbl.add([{vector: [1.3, 1.4], item: "fizz", price: 100.0},
{vector: [9.5, 56.2], item: "buzz", price: 200.0}])
```
=== "vectordb (deprecated)"
## How to search for (approximate) nearest neighbors
```typescript
console.log(await db.tableNames());
```
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/simple.rs:list_names"
```
## Add data to a table
After a table has been created, you can always add more data to it as follows:
Once you've embedded the query, you can find its nearest neighbors using the following code:
=== "Python"
```python
tbl.search([100, 100]).limit(2).to_pandas()
```
```python
--8<-- "python/python/tests/docs/test_basic.py:add_data"
--8<-- "python/python/tests/docs/test_basic.py:add_data_async"
```
This returns a pandas DataFrame with the results.
=== "Typescript[^1]"
=== "@lancedb/lancedb"
=== "Javascript"
```javascript
const query = await tbl.search([100, 100]).limit(2).execute();
```
```typescript
--8<-- "nodejs/examples/basic.ts:add_data"
```
=== "vectordb (deprecated)"
```typescript
--8<-- "docs/src/basic_legacy.ts:add"
```
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/simple.rs:add"
```
## Search for nearest neighbors
Once you've embedded the query, you can find its nearest neighbors as follows:
=== "Python"
```python
--8<-- "python/python/tests/docs/test_basic.py:vector_search"
--8<-- "python/python/tests/docs/test_basic.py:vector_search_async"
```
This returns a pandas DataFrame with the results.
=== "Typescript[^1]"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/basic.ts:vector_search"
```
=== "vectordb (deprecated)"
```typescript
--8<-- "docs/src/basic_legacy.ts:search"
```
=== "Rust"
```rust
use futures::TryStreamExt;
--8<-- "rust/lancedb/examples/simple.rs:search"
```
!!! Query vectors in Rust
Rust does not yet support automatic execution of embedding functions. You will need to
calculate embeddings yourself. Support for this is on the roadmap and can be tracked at
https://github.com/lancedb/lancedb/issues/994
Query vectors can be provided as Arrow arrays or a Vec/slice of Rust floats.
Support for additional formats (e.g. `polars::series::Series`) is on the roadmap.
By default, LanceDB runs a brute-force scan over dataset to find the K nearest neighbours (KNN).
For tables with more than 50K vectors, creating an ANN index is recommended to speed up search performance.
LanceDB allows you to create an ANN index on a table as follows:
=== "Python"
```py
--8<-- "python/python/tests/docs/test_basic.py:create_index"
--8<-- "python/python/tests/docs/test_basic.py:create_index_async"
```
=== "Typescript[^1]"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/basic.ts:create_index"
```
=== "vectordb (deprecated)"
```{.typescript .ignore}
--8<-- "docs/src/basic_legacy.ts:create_index"
```
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/simple.rs:create_index"
```
!!! note "Why do I need to create an index manually?"
LanceDB does not automatically create the ANN index for two reasons. The first is that it's optimized
for really fast retrievals via a disk-based index, and the second is that data and query workloads can
be very diverse, so there's no one-size-fits-all index configuration. LanceDB provides many parameters
to fine-tune index size, query latency and accuracy. See the section on
[ANN indexes](ann_indexes.md) for more details.
## Delete rows from a table
## How to delete rows from a table
Use the `delete()` method on tables to delete rows from a table. To choose
which rows to delete, provide a filter that matches on the metadata columns.
This can delete any number of rows that match the filter.
=== "Python"
```python
tbl.delete('item = "fizz"')
```
```python
--8<-- "python/python/tests/docs/test_basic.py:delete_rows"
--8<-- "python/python/tests/docs/test_basic.py:delete_rows_async"
```
=== "Typescript[^1]"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/basic.ts:delete_rows"
```
=== "vectordb (deprecated)"
```typescript
--8<-- "docs/src/basic_legacy.ts:delete"
```
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/simple.rs:delete"
```
=== "Javascript"
```javascript
await tbl.delete('item = "fizz"')
```
The deletion predicate is a SQL expression that supports the same expressions
as the `where()` clause (`only_if()` in Rust) on a search. They can be as
simple or complex as needed. To see what expressions are supported, see the
[SQL filters](sql.md) section.
as the `where()` clause on a search. They can be as simple or complex as needed.
To see what expressions are supported, see the [SQL filters](sql.md) section.
=== "Python"
Read more: [lancedb.table.Table.delete][]
=== "Typescript[^1]"
=== "Javascript"
=== "@lancedb/lancedb"
Read more: [vectordb.Table.delete](javascript/interfaces/Table.md#delete)
Read more: [lancedb.Table.delete](javascript/interfaces/Table.md#delete)
=== "vectordb (deprecated)"
Read more: [vectordb.Table.delete](javascript/interfaces/Table.md#delete)
=== "Rust"
Read more: [lancedb::Table::delete](https://docs.rs/lancedb/latest/lancedb/table/struct.Table.html#method.delete)
## Drop a table
## How to remove a table
Use the `drop_table()` method on the database to remove a table.
=== "Python"
```python
db.drop_table("my_table")
```
```python
--8<-- "python/python/tests/docs/test_basic.py:drop_table"
--8<-- "python/python/tests/docs/test_basic.py:drop_table_async"
```
This permanently removes the table and is not recoverable, unlike deleting rows.
By default, if the table does not exist an exception is raised. To suppress this,
you can pass in `ignore_missing=True`.
This permanently removes the table and is not recoverable, unlike deleting rows.
By default, if the table does not exist an exception is raised. To suppress this,
you can pass in `ignore_missing=True`.
=== "Typescript[^1]"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/basic.ts:drop_table"
```
=== "vectordb (deprecated)"
```typescript
--8<-- "docs/src/basic_legacy.ts:drop_table"
```
This permanently removes the table and is not recoverable, unlike deleting rows.
If the table does not exist an exception is raised.
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/simple.rs:drop_table"
```
## Using the Embedding API
You can use the embedding API when working with embedding models. It automatically vectorizes the data at ingestion and query time and comes with built-in integrations with popular embedding models like Openai, Hugging Face, Sentence Transformers, CLIP and more.
=== "Python"
```python
--8<-- "python/python/tests/docs/test_embeddings_optional.py:imports"
--8<-- "python/python/tests/docs/test_embeddings_optional.py:openai_embeddings"
```
=== "Typescript[^1]"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/embedding.ts:imports"
--8<-- "nodejs/examples/embedding.ts:openai_embeddings"
```
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/openai.rs:imports"
--8<-- "rust/lancedb/examples/openai.rs:openai_embeddings"
```
Learn about using the existing integrations and creating custom embedding functions in the [embedding API guide](./embeddings/).
=== "JavaScript"
```javascript
await db.dropTable('myTable')
```
This permanently removes the table and is not recoverable, unlike deleting rows.
If the table does not exist an exception is raised.
## What's next
This section covered the very basics of using LanceDB. If you're learning about vector databases for the first time, you may want to read the page on [indexing](concepts/index_ivfpq.md) to get familiar with the concepts.
This section covered the very basics of the LanceDB API.
LanceDB supports many additional features when creating indices to speed up search and options for search.
These are contained in the next section of the documentation.
If you've already worked with other vector databases, you may want to read the [guides](guides/tables.md) to learn how to work with LanceDB in more detail.
[^1]: The `vectordb` package is a legacy package that is deprecated in favor of `@lancedb/lancedb`. The `vectordb` package will continue to receive bug fixes and security updates until September 2024. We recommend all new projects use `@lancedb/lancedb`. See the [migration guide](migration.md) for more information.
## Note: Bundling vectorDB apps with webpack
Since LanceDB contains a prebuilt Node binary, you must configure `next.config.js` to exclude it from webpack. This is required for both using Next.js and deploying on Vercel.
```javascript
/** @type {import('next').NextConfig} */
module.exports = ({
webpack(config) {
config.externals.push({ vectordb: 'vectordb' })
return config;
}
})
```

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@@ -1,93 +0,0 @@
// --8<-- [start:import]
import * as lancedb from "vectordb";
import { Schema, Field, Float32, FixedSizeList, Int32, Float16 } from "apache-arrow";
// --8<-- [end:import]
import * as fs from "fs";
import { Table as ArrowTable, Utf8 } from "apache-arrow";
const example = async () => {
fs.rmSync("data/sample-lancedb", { recursive: true, force: true });
// --8<-- [start:open_db]
const lancedb = require("vectordb");
const uri = "data/sample-lancedb";
const db = await lancedb.connect(uri);
// --8<-- [end:open_db]
// --8<-- [start:create_table]
const tbl = await db.createTable(
"myTable",
[
{ vector: [3.1, 4.1], item: "foo", price: 10.0 },
{ vector: [5.9, 26.5], item: "bar", price: 20.0 },
],
{ writeMode: lancedb.WriteMode.Overwrite }
);
// --8<-- [end:create_table]
// --8<-- [start:add]
const newData = Array.from({ length: 500 }, (_, i) => ({
vector: [i, i + 1],
item: "fizz",
price: i * 0.1,
}));
await tbl.add(newData);
// --8<-- [end:add]
// --8<-- [start:create_index]
await tbl.createIndex({
type: "ivf_pq",
num_partitions: 2,
num_sub_vectors: 2,
});
// --8<-- [end:create_index]
// --8<-- [start:create_empty_table]
const schema = new Schema([
new Field("id", new Int32()),
new Field("name", new Utf8()),
]);
const empty_tbl = await db.createTable({ name: "empty_table", schema });
// --8<-- [end:create_empty_table]
// --8<-- [start:create_f16_table]
const dim = 16
const total = 10
const f16_schema = new Schema([
new Field('id', new Int32()),
new Field(
'vector',
new FixedSizeList(dim, new Field('item', new Float16(), true)),
false
)
])
const data = lancedb.makeArrowTable(
Array.from(Array(total), (_, i) => ({
id: i,
vector: Array.from(Array(dim), Math.random)
})),
{ f16_schema }
)
const table = await db.createTable('f16_tbl', data)
// --8<-- [end:create_f16_table]
// --8<-- [start:search]
const query = await tbl.search([100, 100]).limit(2).execute();
// --8<-- [end:search]
console.log(query);
// --8<-- [start:delete]
await tbl.delete('item = "fizz"');
// --8<-- [end:delete]
// --8<-- [start:drop_table]
await db.dropTable("myTable");
// --8<-- [end:drop_table]
};
async function main() {
await example();
console.log("Basic example: done");
}
main();

37
docs/src/cli_config.md Normal file
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@@ -0,0 +1,37 @@
## LanceDB CLI
Once lanceDB is installed, you can access the CLI using `lancedb` command on the console
```
lancedb
```
This lists out all the various command-line options available. You can get the usage or help for a particular command
```
lancedb {command} --help
```
## LanceDB config
LanceDB uses a global config file to store certain settings. These settings are configurable using the lanceDB cli.
To view your config settings, you can use:
```
lancedb config
```
These config parameters can be tuned using the cli.
```
lancedb {config_name} --{argument}
```
## LanceDB Opt-in Diagnostics
When enabled, LanceDB will send anonymous events to help us improve LanceDB. These diagnostics are used only for error reporting and no data is collected. Error & stats allow us to automate certain aspects of bug reporting, prioritization of fixes and feature requests.
These diagnostics are opt-in and can be enabled or disabled using the `lancedb diagnostics` command. These are enabled by default.
Get usage help.
```
lancedb diagnostics --help
```
Disable diagnostics
```
lancedb diagnostics --disabled
```
Enable diagnostics
```
lancedb diagnostics --enabled
```

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@@ -1,17 +0,0 @@
# About LanceDB Cloud
LanceDB Cloud is a SaaS (software-as-a-service) solution that runs serverless in the cloud, clearly separating storage from compute. It's designed to be highly scalable without breaking the bank. LanceDB Cloud is currently in private beta with general availability coming soon, but you can apply for early access with the private beta release by signing up below.
[Try out LanceDB Cloud](https://noteforms.com/forms/lancedb-mailing-list-cloud-kty1o5?notionforms=1&utm_source=notionforms){ .md-button .md-button--primary }
## Architecture
LanceDB Cloud provides the same underlying fast vector store that powers the OSS version, but without the need to maintain your own infrastructure. Because it's serverless, you only pay for the storage you use, and you can scale compute up and down as needed depending on the size of your data and its associated index.
![](../assets/lancedb_cloud.png)
## Transitioning from the OSS to the Cloud version
The OSS version of LanceDB is designed to be embedded in your application, and it runs in-process. This makes it incredibly simple to self-host your own AI retrieval workflows for RAG and more and build and test out your concepts on your own infrastructure. The OSS version is forever free, and you can continue to build and integrate LanceDB into your existing backend applications without any added costs.
Should you decide that you need a managed deployment in production, it's possible to seamlessly transition from the OSS to the cloud version by changing the connection string to point to a remote database instead of a local one. With LanceDB Cloud, you can take your AI application from development to production without major code changes or infrastructure burden.

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@@ -1 +0,0 @@
!!swagger ../../openapi.yml!!

View File

@@ -1,62 +0,0 @@
# Data management
This section covers concepts related to managing your data over time in LanceDB.
## A primer on Lance
Because LanceDB is built on top of the [Lance](https://lancedb.github.io/lance/) data format, it helps to understand some of its core ideas. Just like Apache Arrow, Lance is a fast columnar data format, but it has the added benefit of being versionable, query and train ML models on. Lance is designed to be used with simple and complex data types, like tabular data, images, videos audio, 3D point clouds (which are deeply nested) and more.
The following concepts are important to keep in mind:
- Data storage is columnar and is interoperable with other columnar formats (such as Parquet) via Arrow
- Data is divided into fragments that represent a subset of the data
- Data is versioned, with each insert operation creating a new version of the dataset and an update to the manifest that tracks versions via metadata
!!! note
1. First, each version contains metadata and just the new/updated data in your transaction. So if you have 100 versions, they aren't 100 duplicates of the same data. However, they do have 100x the metadata overhead of a single version, which can result in slower queries.
2. Second, these versions exist to keep LanceDB scalable and consistent. We do not immediately blow away old versions when creating new ones because other clients might be in the middle of querying the old version. It's important to retain older versions for as long as they might be queried.
## What are fragments?
Fragments are chunks of data in a Lance dataset. Each fragment includes multiple files that contain several columns in the chunk of data that it represents.
## Compaction
As you insert more data, your dataset will grow and you'll need to perform *compaction* to maintain query throughput (i.e., keep latencies down to a minimum). Compaction is the process of merging fragments together to reduce the amount of metadata that needs to be managed, and to reduce the number of files that need to be opened while scanning the dataset.
### How does compaction improve performance?
Compaction performs the following tasks in the background:
- Removes deleted rows from fragments
- Removes dropped columns from fragments
- Merges small fragments into larger ones
Depending on the use case and dataset, optimal compaction will have different requirements. As a rule of thumb:
- Its always better to use *batch* inserts rather than adding 1 row at a time (to avoid too small fragments). If single-row inserts are unavoidable, run compaction on a regular basis to merge them into larger fragments.
- Keep the number of fragments under 100, which is suitable for most use cases (for *really* large datasets of >500M rows, more fragments might be needed)
## Deletion
Although Lance allows you to delete rows from a dataset, it does not actually delete the data immediately. It simply marks the row as deleted in the `DataFile` that represents a fragment. For a given version of the dataset, each fragment can have up to one deletion file (if no rows were ever deleted from that fragment, it will not have a deletion file). This is important to keep in mind because it means that the data is still there, and can be recovered if needed, as long as that version still exists based on your backup policy.
## Reindexing
Reindexing is the process of updating the index to account for new data, keeping good performance for queries. This applies to either a full-text search (FTS) index or a vector index. For ANN search, new data will always be included in query results, but queries on tables with unindexed data will fallback to slower search methods for the new parts of the table. This is another important operation to run periodically as your data grows, as it also improves performance. This is especially important if you're appending large amounts of data to an existing dataset.
!!! tip
When adding new data to a dataset that has an existing index (either FTS or vector), LanceDB doesn't immediately update the index until a reindex operation is complete.
Both LanceDB OSS and Cloud support reindexing, but the process (at least for now) is different for each, depending on the type of index.
When a reindex job is triggered in the background, the entire data is reindexed, but in the interim as new queries come in, LanceDB will combine results from the existing index with exhaustive kNN search on the new data. This is done to ensure that you're still searching on all your data, but it does come at a performance cost. The more data that you add without reindexing, the impact on latency (due to exhaustive search) can be noticeable.
### Vector reindex
* LanceDB Cloud supports incremental reindexing, where a background process will trigger a new index build for you automatically when new data is added to a dataset
* LanceDB OSS requires you to manually trigger a reindex operation -- we are working on adding incremental reindexing to LanceDB OSS as well
### FTS reindex
FTS reindexing is supported in both LanceDB OSS and Cloud, but requires that it's manually rebuilt once you have a significant enough amount of new data added that needs to be reindexed. We [updated](https://github.com/lancedb/lancedb/pull/762) Tantivy's default heap size from 128MB to 1GB in LanceDB to make it much faster to reindex, by up to 10x from the default settings.

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@@ -1,84 +0,0 @@
# Understanding LanceDB's IVF-PQ index
An ANN (Approximate Nearest Neighbors) index is a data structure that represents data in a way that makes it more efficient to search and retrieve. Using an ANN index is faster, but less accurate than kNN or brute force search because, in essence, the index is a lossy representation of the data.
LanceDB is fundamentally different from other vector databases in that it is built on top of [Lance](https://github.com/lancedb/lance), an open-source columnar data format designed for performant ML workloads and fast random access. Due to the design of Lance, LanceDB's indexing philosophy adopts a primarily *disk-based* indexing philosophy.
## IVF-PQ
IVF-PQ is a composite index that combines inverted file index (IVF) and product quantization (PQ). The implementation in LanceDB provides several parameters to fine-tune the index's size, query throughput, latency and recall, which are described later in this section.
### Product quantization
Quantization is a compression technique used to reduce the dimensionality of an embedding to speed up search.
Product quantization (PQ) works by dividing a large, high-dimensional vector of size into equally sized subvectors. Each subvector is assigned a "reproduction value" that maps to the nearest centroid of points for that subvector. The reproduction values are then assigned to a codebook using unique IDs, which can be used to reconstruct the original vector.
![](../assets/ivfpq_pq_desc.png)
It's important to remember that quantization is a *lossy process*, i.e., the reconstructed vector is not identical to the original vector. This results in a trade-off between the size of the index and the accuracy of the search results.
As an example, consider starting with 128-dimensional vector consisting of 32-bit floats. Quantizing it to an 8-bit integer vector with 4 dimensions as in the image above, we can significantly reduce memory requirements.
!!! example "Effect of quantization"
Original: `128 × 32 = 4096` bits
Quantized: `4 × 8 = 32` bits
Quantization results in a **128x** reduction in memory requirements for each vector in the index, which is substantial.
### Inverted file index
While PQ helps with reducing the size of the index, IVF primarily addresses search performance. The primary purpose of an inverted file index is to facilitate rapid and effective nearest neighbor search by narrowing down the search space.
In IVF, the PQ vector space is divided into *Voronoi cells*, which are essentially partitions that consist of all the points in the space that are within a threshold distance of the given region's seed point. These seed points are initialized by running K-means over the stored vectors. The centroids of K-means turn into the seed points which then each define a region. These regions are then are used to create an inverted index that correlates each centroid with a list of vectors in the space, allowing a search to be restricted to just a subset of vectors in the index.
![](../assets/ivfpq_ivf_desc.webp)
During query time, depending on where the query lands in vector space, it may be close to the border of multiple Voronoi cells, which could make the top-k results ambiguous and span across multiple cells. To address this, the IVF-PQ introduces the `nprobe` parameter, which controls the number of Voronoi cells to search during a query. The higher the `nprobe`, the more accurate the results, but the slower the query.
![](../assets/ivfpq_query_vector.webp)
## Putting it all together
We can combine the above concepts to understand how to build and query an IVF-PQ index in LanceDB.
### Construct index
There are three key parameters to set when constructing an IVF-PQ index:
* `metric`: Use an `L2` euclidean distance metric. We also support `dot` and `cosine` distance.
* `num_partitions`: The number of partitions in the IVF portion of the index.
* `num_sub_vectors`: The number of sub-vectors that will be created during Product Quantization (PQ).
In Python, the index can be created as follows:
```python
# Create and train the index for a 1536-dimensional vector
# Make sure you have enough data in the table for an effective training step
tbl.create_index(metric="L2", num_partitions=256, num_sub_vectors=96)
```
The `num_partitions` is usually chosen to target a particular number of vectors per partition. `num_sub_vectors` is typically chosen based on the desired recall and the dimensionality of the vector. See the [FAQs](#faq) below for best practices on choosing these parameters.
### Query the index
```python
# Search using a random 1536-dimensional embedding
tbl.search(np.random.random((1536))) \
.limit(2) \
.nprobes(20) \
.refine_factor(10) \
.to_pandas()
```
The above query will perform a search on the table `tbl` using the given query vector, with the following parameters:
* `limit`: The number of results to return
* `nprobes`: The number of probes determines the distribution of vector space. While a higher number enhances search accuracy, it also results in slower performance. Typically, setting `nprobes` to cover 510% of the dataset proves effective in achieving high recall with minimal latency.
* `refine_factor`: Refine the results by reading extra elements and re-ranking them in memory. A higher number makes the search more accurate but also slower (see the [FAQ](../faq.md#do-i-need-to-set-a-refine-factor-when-using-an-index) page for more details on this).
* `to_pandas()`: Convert the results to a pandas DataFrame
And there you have it! You now understand what an IVF-PQ index is, and how to create and query it in LanceDB.
To see how to create an IVF-PQ index in LanceDB, take a look at the [ANN indexes](../ann_indexes.md) section.

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@@ -1,80 +0,0 @@
# Storage
LanceDB is among the only vector databases built on top of multiple modular components designed from the ground-up to be efficient on disk. This gives it the unique benefit of being flexible enough to support multiple storage backends, including local NVMe, EBS, EFS and many other third-party APIs that connect to the cloud.
It is important to understand the tradeoffs between cost and latency for your specific application and use case. This section will help you understand the tradeoffs between the different storage backends.
## Storage options
We've prepared a simple diagram to showcase the thought process that goes into choosing a storage backend when using LanceDB OSS, Cloud or Enterprise.
![](../assets/lancedb_storage_tradeoffs.png)
When architecting your system, you'd typically ask yourself the following questions to decide on a storage option:
1. **Latency**: How fast do I need results? What do the p50 and also p95 look like?
2. **Scalability**: Can I scale up the amount of data and QPS easily?
3. **Cost**: To serve my application, whats the all-in cost of *both* storage and serving infra?
4. **Reliability/Availability**: How does replication work? Is disaster recovery addressed?
## Tradeoffs
This section reviews the characteristics of each storage option in four dimensions: latency, scalability, cost and reliability.
**We begin with the lowest cost option, and end with the lowest latency option.**
### 1. S3 / GCS / Azure Blob Storage
!!! tip "Lowest cost, highest latency"
- **Latency** ⇒ Has the highest latency. p95 latency is also substantially worse than p50. In general you get results in the order of several hundred milliseconds
- **Scalability** ⇒ Infinite on storage, however, QPS will be limited by S3 concurrency limits
- **Cost** ⇒ Lowest (order of magnitude cheaper than other options)
- **Reliability/Availability** ⇒ Highly available, as blob storage like S3 are critical infrastructure that form the backbone of the internet.
Another important point to note is that LanceDB is designed to separate storage from compute, and the underlying Lance format stores the data in numerous immutable fragments. Due to these factors, LanceDB is a great storage option that addresses the _N + 1_ query problem. i.e., when a high query throughput is required, query processes can run in a stateless manner and be scaled up and down as needed.
### 2. EFS / GCS Filestore / Azure File Storage
!!! info "Moderately low cost, moderately low latency (<100ms)"
- **Latency** Much better than object/blob storage but not as good as EBS/Local disk; < 100ms p95 achievable
- **Scalability** High, but the bottleneck will be the IOPs limit, but when scaling you can provision multiple EFS volumes
- **Cost** Significantly more expensive than S3 but still very cost effective compared to in-memory dbs. Inactive data in EFS is also automatically tiered to S3-level costs.
- **Reliability/Availability** Highly available, as query nodes can go down without affecting EFS. However, EFS does not provide replication / backup - this must be managed manually.
A recommended best practice is to keep a copy of the data on S3 for disaster recovery scenarios. If any downtime is unacceptable, then you would need another EFS with a copy of the data. This is still much cheaper than EC2 instances holding multiple copies of the data.
### 3. Third-party storage solutions
Solutions like [MinIO](https://blog.min.io/lancedb-trusted-steed-against-data-complexity/), WekaFS, etc. that deliver S3 compatible API with much better performance than S3.
!!! info "Moderately low cost, moderately low latency (<100ms)"
- **Latency** Should be similar latency to EFS, better than S3 (<100ms)
- **Scalability** Up to the solutions architect, who can add as many nodes to their MinIO or other third-party provider's cluster as needed
- **Cost** Definitely higher than S3. The cost can be marginally higher than EFS until you get to maybe >10TB scale with high utilization
- **Reliability/Availability** ⇒ These are all shareable by lots of nodes, quality/cost of replication/backup depends on the vendor
### 4. EBS / GCP Persistent Disk / Azure Managed Disk
!!! info "Very low latency (<30ms), higher cost"
- **Latency** Very good, pretty close to local disk. Youre looking at <30ms latency in most cases
- **Scalability** EBS is not shareable between instances. If deployed via k8s, it can be shared between pods that live on the same instance, but beyond that you would need to shard data or make an additional copy
- **Cost** Higher than EFS. There are some hidden costs to EBS as well if youre paying for IO.
- **Reliability/Availability** Not shareable between instances but can be shared between pods on the same instance. Survives instance termination. No automatic backups.
Just like EFS, an EBS or persistent disk setup requires more manual work to manage data sharding, backups and capacity.
### 5. Local disk (SSD/NVMe)
!!! danger "Lowest latency (<10ms), highest cost"
- **Latency** Lowest latency with modern NVMe drives, <10ms p95
- **Scalability** Difficult to scale on cloud. Also need additional copies / sharding if QPS needs to be higher
- **Cost** Highest cost; the main issue with keeping your application and storage tightly integrated is that its just not really possible to scale this up in cloud environments
- **Reliability/Availability** If the instance goes down, so does your data. You have to be _very_ diligent about backing up your data
As a rule of thumb, local disk should be your storage option if you require absolutely *crazy low* latency and youre willing to do a bunch of data management work to make it happen.

View File

@@ -1,36 +0,0 @@
# Vector search
Vector search is a technique used to search for similar items based on their vector representations, called embeddings. It is also known as similarity search, nearest neighbor search, or approximate nearest neighbor search.
Raw data (e.g. text, images, audio, etc.) is converted into embeddings via an embedding model, which are then stored in a vector database like LanceDB. To perform similarity search at scale, an index is created on the stored embeddings, which can then used to perform fast lookups.
![](../assets/vector-db-basics.png)
## Embeddings
Modern machine learning models can be trained to convert raw data into embeddings, represented as arrays (or vectors) of floating point numbers of fixed dimensionality. What makes embeddings useful in practice is that the position of an embedding in vector space captures some of the semantics of the data, depending on the type of model and how it was trained. Points that are close to each other in vector space are considered similar (or appear in similar contexts), and points that are far away are considered dissimilar.
Large datasets of multi-modal data (text, audio, images, etc.) can be converted into embeddings with the appropriate model. Projecting the vectors' principal components in 2D space results in groups of vectors that represent similar concepts clustering together, as shown below.
![](../assets/embedding_intro.png)
## Indexes
Embeddings for a given dataset are made searchable via an **index**. The index is constructed by using data structures that store the embeddings such that it's very efficient to perform scans and lookups on them. A key distinguishing feature of LanceDB is it uses a disk-based index: IVF-PQ, which is a variant of the Inverted File Index (IVF) that uses Product Quantization (PQ) to compress the embeddings.
See the [IVF-PQ](./index_ivfpq.md) page for more details on how it works.
## Brute force search
The simplest way to perform vector search is to perform a brute force search, without an index, where the distance between the query vector and all the vectors in the database are computed, with the top-k closest vectors returned. This is equivalent to a k-nearest neighbours (kNN) search in vector space.
![](../assets/knn_search.png)
As you can imagine, the brute force approach is not scalable for datasets larger than a few hundred thousand vectors, as the latency of the search grows linearly with the size of the dataset. This is where approximate nearest neighbour (ANN) algorithms come in.
## Approximate nearest neighbour (ANN) search
Instead of performing an exhaustive search on the entire database for each and every query, approximate nearest neighbour (ANN) algorithms use an index to narrow down the search space, which significantly reduces query latency. The trade-off is that the results are not guaranteed to be the true nearest neighbors of the query, but are usually "good enough" for most use cases.

View File

@@ -1,5 +1,4 @@
To use your own custom embedding function, you can follow these 2 simple steps:
To use your own custom embedding function, you need to follow these 2 simple steps.
1. Create your embedding function by implementing the `EmbeddingFunction` interface
2. Register your embedding function in the global `EmbeddingFunctionRegistry`.
@@ -7,17 +6,18 @@ Let us see how this looks like in action.
![](../assets/embeddings_api.png)
`EmbeddingFunction` and `EmbeddingFunctionRegistry` handle low-level details for serializing schema and model information as metadata. To build a custom embedding function, you don't have to worry about the finer details - simply focus on setting up the model and leave the rest to LanceDB.
## `TextEmbeddingFunction` interface
`EmbeddingFunction` & `EmbeddingFunctionRegistry` handle low-level details for serializing schema and model information as metadata. To build a custom embdding function, you don't need to worry about those details and simply focus on setting up the model.
## `TextEmbeddingFunction` Interface
There is another optional layer of abstraction provided in form of `TextEmbeddingFunction`. You can use this if your model isn't multi-modal in nature and only operates on text. In such case both source and vector fields will have the same pathway for vectorization, so you simply just need to setup the model and rest is handled by `TextEmbeddingFunction`. You can read more about the class and its attributes in the class reference.
There is another optional layer of abstraction available: `TextEmbeddingFunction`. You can use this abstraction if your model isn't multi-modal in nature and only needs to operate on text. In such cases, both the source and vector fields will have the same work for vectorization, so you simply just need to setup the model and rest is handled by `TextEmbeddingFunction`. You can read more about the class and its attributes in the class reference.
Let's implement `SentenceTransformerEmbeddings` class. All you need to do is implement the `generate_embeddings()` and `ndims` function to handle the input types you expect and register the class in the global `EmbeddingFunctionRegistry`
```python
from lancedb.embeddings import register
from lancedb.util import attempt_import_or_raise
@register("sentence-transformers")
class SentenceTransformerEmbeddings(TextEmbeddingFunction):
@@ -39,6 +39,7 @@ class SentenceTransformerEmbeddings(TextEmbeddingFunction):
@cached(cache={})
def _embedding_model(self):
return sentence_transformers.SentenceTransformer(name)
```
This is a stripped down version of our implementation of `SentenceTransformerEmbeddings` that removes certain optimizations and defaul settings.
@@ -82,7 +83,7 @@ class OpenClipEmbeddings(EmbeddingFunction):
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
open_clip = attempt_import_or_raise("open_clip", "open-clip") # EmbeddingFunction util to import external libs and raise if not found
open_clip = self.safe_import("open_clip", "open-clip") # EmbeddingFunction util to import external libs and raise if not found
model, _, preprocess = open_clip.create_model_and_transforms(
self.name, pretrained=self.pretrained
)
@@ -110,14 +111,14 @@ class OpenClipEmbeddings(EmbeddingFunction):
if isinstance(query, str):
return [self.generate_text_embeddings(query)]
else:
PIL = attempt_import_or_raise("PIL", "pillow")
PIL = self.safe_import("PIL", "pillow")
if isinstance(query, PIL.Image.Image):
return [self.generate_image_embedding(query)]
else:
raise TypeError("OpenClip supports str or PIL Image as query")
def generate_text_embeddings(self, text: str) -> np.ndarray:
torch = attempt_import_or_raise("torch")
torch = self.safe_import("torch")
text = self.sanitize_input(text)
text = self._tokenizer(text)
text.to(self.device)
@@ -176,7 +177,7 @@ class OpenClipEmbeddings(EmbeddingFunction):
The image to embed. If the image is a str, it is treated as a uri.
If the image is bytes, it is treated as the raw image bytes.
"""
torch = attempt_import_or_raise("torch")
torch = self.safe_import("torch")
# TODO handle retry and errors for https
image = self._to_pil(image)
image = self._preprocess(image).unsqueeze(0)
@@ -184,7 +185,7 @@ class OpenClipEmbeddings(EmbeddingFunction):
return self._encode_and_normalize_image(image)
def _to_pil(self, image: Union[str, bytes]):
PIL = attempt_import_or_raise("PIL", "pillow")
PIL = self.safe_import("PIL", "pillow")
if isinstance(image, bytes):
return PIL.Image.open(io.BytesIO(image))
if isinstance(image, PIL.Image.Image):

View File

@@ -1,274 +1,64 @@
There are various embedding functions available out of the box with LanceDB to manage your embeddings implicitly. We're actively working on adding other popular embedding APIs and models.
There are various Embedding functions available out of the box with LanceDB. We're working on supporting other popular embedding APIs.
## Text embedding functions
Contains the text embedding functions registered by default.
## Text Embedding Functions
Here are the text embedding functions registered by default.
Embedding functions have an inbuilt rate limit handler wrapper for source and query embedding function calls that retry with exponential standoff.
Each `EmbeddingFunction` implementation automatically takes `max_retries` as an argument which has the default value of 7.
* Embedding functions have an inbuilt rate limit handler wrapper for source and query embedding function calls that retry with exponential backoff.
* Each `EmbeddingFunction` implementation automatically takes `max_retries` as an argument which has the default value of 7.
### Sentence transformers
Allows you to set parameters when registering a `sentence-transformers` object.
!!! info
Sentence transformer embeddings are normalized by default. It is recommended to use normalized embeddings for similarity search.
### Sentence Transformers
Here are the parameters that you can set when registering a `sentence-transformers` object, and their default values:
| Parameter | Type | Default Value | Description |
|---|---|---|---|
| `name` | `str` | `all-MiniLM-L6-v2` | The name of the model |
| `device` | `str` | `cpu` | The device to run the model on (can be `cpu` or `gpu`) |
| `normalize` | `bool` | `True` | Whether to normalize the input text before feeding it to the model |
| `name` | `str` | `"all-MiniLM-L6-v2"` | The name of the model. |
| `device` | `str` | `"cpu"` | The device to run the model on. Can be `"cpu"` or `"gpu"`. |
| `normalize` | `bool` | `True` | Whether to normalize the input text before feeding it to the model. |
??? "Check out available sentence-transformer models here!"
```markdown
- sentence-transformers/all-MiniLM-L12-v2
- sentence-transformers/paraphrase-mpnet-base-v2
- sentence-transformers/gtr-t5-base
- sentence-transformers/LaBSE
- sentence-transformers/all-MiniLM-L6-v2
- sentence-transformers/bert-base-nli-max-tokens
- sentence-transformers/bert-base-nli-mean-tokens
- sentence-transformers/bert-base-nli-stsb-mean-tokens
- sentence-transformers/bert-base-wikipedia-sections-mean-tokens
- sentence-transformers/bert-large-nli-cls-token
- sentence-transformers/bert-large-nli-max-tokens
- sentence-transformers/bert-large-nli-mean-tokens
- sentence-transformers/bert-large-nli-stsb-mean-tokens
- sentence-transformers/distilbert-base-nli-max-tokens
- sentence-transformers/distilbert-base-nli-mean-tokens
- sentence-transformers/distilbert-base-nli-stsb-mean-tokens
- sentence-transformers/distilroberta-base-msmarco-v1
- sentence-transformers/distilroberta-base-msmarco-v2
- sentence-transformers/nli-bert-base-cls-pooling
- sentence-transformers/nli-bert-base-max-pooling
- sentence-transformers/nli-bert-base
- sentence-transformers/nli-bert-large-cls-pooling
- sentence-transformers/nli-bert-large-max-pooling
- sentence-transformers/nli-bert-large
- sentence-transformers/nli-distilbert-base-max-pooling
- sentence-transformers/nli-distilbert-base
- sentence-transformers/nli-roberta-base
- sentence-transformers/nli-roberta-large
- sentence-transformers/roberta-base-nli-mean-tokens
- sentence-transformers/roberta-base-nli-stsb-mean-tokens
- sentence-transformers/roberta-large-nli-mean-tokens
- sentence-transformers/roberta-large-nli-stsb-mean-tokens
- sentence-transformers/stsb-bert-base
- sentence-transformers/stsb-bert-large
- sentence-transformers/stsb-distilbert-base
- sentence-transformers/stsb-roberta-base
- sentence-transformers/stsb-roberta-large
- sentence-transformers/xlm-r-100langs-bert-base-nli-mean-tokens
- sentence-transformers/xlm-r-100langs-bert-base-nli-stsb-mean-tokens
- sentence-transformers/xlm-r-base-en-ko-nli-ststb
- sentence-transformers/xlm-r-bert-base-nli-mean-tokens
- sentence-transformers/xlm-r-bert-base-nli-stsb-mean-tokens
- sentence-transformers/xlm-r-large-en-ko-nli-ststb
- sentence-transformers/bert-base-nli-cls-token
- sentence-transformers/all-distilroberta-v1
- sentence-transformers/multi-qa-MiniLM-L6-dot-v1
- sentence-transformers/multi-qa-distilbert-cos-v1
- sentence-transformers/multi-qa-distilbert-dot-v1
- sentence-transformers/multi-qa-mpnet-base-cos-v1
- sentence-transformers/multi-qa-mpnet-base-dot-v1
- sentence-transformers/nli-distilroberta-base-v2
- sentence-transformers/all-MiniLM-L6-v1
- sentence-transformers/all-mpnet-base-v1
- sentence-transformers/all-mpnet-base-v2
- sentence-transformers/all-roberta-large-v1
- sentence-transformers/allenai-specter
- sentence-transformers/average_word_embeddings_glove.6B.300d
- sentence-transformers/average_word_embeddings_glove.840B.300d
- sentence-transformers/average_word_embeddings_komninos
- sentence-transformers/average_word_embeddings_levy_dependency
- sentence-transformers/clip-ViT-B-32-multilingual-v1
- sentence-transformers/clip-ViT-B-32
- sentence-transformers/distilbert-base-nli-stsb-quora-ranking
- sentence-transformers/distilbert-multilingual-nli-stsb-quora-ranking
- sentence-transformers/distilroberta-base-paraphrase-v1
- sentence-transformers/distiluse-base-multilingual-cased-v1
- sentence-transformers/distiluse-base-multilingual-cased-v2
- sentence-transformers/distiluse-base-multilingual-cased
- sentence-transformers/facebook-dpr-ctx_encoder-multiset-base
- sentence-transformers/facebook-dpr-ctx_encoder-single-nq-base
- sentence-transformers/facebook-dpr-question_encoder-multiset-base
- sentence-transformers/facebook-dpr-question_encoder-single-nq-base
- sentence-transformers/gtr-t5-large
- sentence-transformers/gtr-t5-xl
- sentence-transformers/gtr-t5-xxl
- sentence-transformers/msmarco-MiniLM-L-12-v3
- sentence-transformers/msmarco-MiniLM-L-6-v3
- sentence-transformers/msmarco-MiniLM-L12-cos-v5
- sentence-transformers/msmarco-MiniLM-L6-cos-v5
- sentence-transformers/msmarco-bert-base-dot-v5
- sentence-transformers/msmarco-bert-co-condensor
- sentence-transformers/msmarco-distilbert-base-dot-prod-v3
- sentence-transformers/msmarco-distilbert-base-tas-b
- sentence-transformers/msmarco-distilbert-base-v2
- sentence-transformers/msmarco-distilbert-base-v3
- sentence-transformers/msmarco-distilbert-base-v4
- sentence-transformers/msmarco-distilbert-cos-v5
- sentence-transformers/msmarco-distilbert-dot-v5
- sentence-transformers/msmarco-distilbert-multilingual-en-de-v2-tmp-lng-aligned
- sentence-transformers/msmarco-distilbert-multilingual-en-de-v2-tmp-trained-scratch
- sentence-transformers/msmarco-distilroberta-base-v2
- sentence-transformers/msmarco-roberta-base-ance-firstp
- sentence-transformers/msmarco-roberta-base-v2
- sentence-transformers/msmarco-roberta-base-v3
- sentence-transformers/multi-qa-MiniLM-L6-cos-v1
- sentence-transformers/nli-mpnet-base-v2
- sentence-transformers/nli-roberta-base-v2
- sentence-transformers/nq-distilbert-base-v1
- sentence-transformers/paraphrase-MiniLM-L12-v2
- sentence-transformers/paraphrase-MiniLM-L3-v2
- sentence-transformers/paraphrase-MiniLM-L6-v2
- sentence-transformers/paraphrase-TinyBERT-L6-v2
- sentence-transformers/paraphrase-albert-base-v2
- sentence-transformers/paraphrase-albert-small-v2
- sentence-transformers/paraphrase-distilroberta-base-v1
- sentence-transformers/paraphrase-distilroberta-base-v2
- sentence-transformers/paraphrase-multilingual-MiniLM-L12-v2
- sentence-transformers/paraphrase-multilingual-mpnet-base-v2
- sentence-transformers/paraphrase-xlm-r-multilingual-v1
- sentence-transformers/quora-distilbert-base
- sentence-transformers/quora-distilbert-multilingual
- sentence-transformers/sentence-t5-base
- sentence-transformers/sentence-t5-large
- sentence-transformers/sentence-t5-xxl
- sentence-transformers/sentence-t5-xl
- sentence-transformers/stsb-distilroberta-base-v2
- sentence-transformers/stsb-mpnet-base-v2
- sentence-transformers/stsb-roberta-base-v2
- sentence-transformers/stsb-xlm-r-multilingual
- sentence-transformers/xlm-r-distilroberta-base-paraphrase-v1
- sentence-transformers/clip-ViT-L-14
- sentence-transformers/clip-ViT-B-16
- sentence-transformers/use-cmlm-multilingual
- sentence-transformers/all-MiniLM-L12-v1
```
!!! info
You can also load many other model architectures from the library. For example models from sources such as BAAI, nomic, salesforce research, etc.
See this HF hub page for all [supported models](https://huggingface.co/models?library=sentence-transformers).
!!! note "BAAI Embeddings example"
Here is an example that uses BAAI embedding model from the HuggingFace Hub [supported models](https://huggingface.co/models?library=sentence-transformers)
```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
db = lancedb.connect("/tmp/db")
model = get_registry().get("sentence-transformers").create(name="BAAI/bge-small-en-v1.5", device="cpu")
class Words(LanceModel):
text: str = model.SourceField()
vector: Vector(model.ndims()) = model.VectorField()
table = db.create_table("words", schema=Words)
table.add(
[
{"text": "hello world"},
{"text": "goodbye world"}
]
)
query = "greetings"
actual = table.search(query).limit(1).to_pydantic(Words)[0]
print(actual.text)
```
Visit sentence-transformers [HuggingFace HUB](https://huggingface.co/sentence-transformers) page for more information on the available models.
### Huggingface embedding models
We offer support for all huggingface models (which can be loaded via [transformers](https://huggingface.co/docs/transformers/en/index) library). The default model is `colbert-ir/colbertv2.0` which also has its own special callout - `registry.get("colbert")`
Example usage -
```python
import lancedb
import pandas as pd
from lancedb.embeddings import get_registry
from lancedb.pydantic import LanceModel, Vector
model = get_registry().get("huggingface").create(name='facebook/bart-base')
class Words(LanceModel):
text: str = model.SourceField()
vector: Vector(model.ndims()) = model.VectorField()
df = pd.DataFrame({"text": ["hi hello sayonara", "goodbye world"]})
table = db.create_table("greets", schema=Words)
table.add(df)
query = "old greeting"
actual = table.search(query).limit(1).to_pydantic(Words)[0]
print(actual.text)
```
### Ollama embeddings
Generate embeddings via the [ollama](https://github.com/ollama/ollama-python) python library. More details:
- [Ollama docs on embeddings](https://github.com/ollama/ollama/blob/main/docs/api.md#generate-embeddings)
- [Ollama blog on embeddings](https://ollama.com/blog/embedding-models)
| Parameter | Type | Default Value | Description |
|------------------------|----------------------------|--------------------------|------------------------------------------------------------------------------------------------------------------------------------------------|
| `name` | `str` | `nomic-embed-text` | The name of the model. |
| `host` | `str` | `http://localhost:11434` | The Ollama host to connect to. |
| `options` | `ollama.Options` or `dict` | `None` | Additional model parameters listed in the documentation for the Modelfile such as `temperature`. |
| `keep_alive` | `float` or `str` | `"5m"` | Controls how long the model will stay loaded into memory following the request. |
| `ollama_client_kwargs` | `dict` | `{}` | kwargs that can be past to the `ollama.Client`. |
```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
db = lancedb.connect("/tmp/db")
func = get_registry().get("ollama").create(name="nomic-embed-text")
registry = EmbeddingFunctionRegistry.get_instance()
func = registry.get("sentence-transformers").create(device="cpu")
class Words(LanceModel):
text: str = func.SourceField()
vector: Vector(func.ndims()) = func.VectorField()
table = db.create_table("words", schema=Words, mode="overwrite")
table.add([
{"text": "hello world"},
{"text": "goodbye world"}
])
table = db.create_table("words", schema=Words)
table.add(
[
{"text": "hello world"}
{"text": "goodbye world"}
]
)
query = "greetings"
actual = table.search(query).limit(1).to_pydantic(Words)[0]
print(actual.text)
```
### OpenAI embeddings
LanceDB registers the OpenAI embeddings function in the registry by default, as `openai`. Below are the parameters that you can customize when creating the instances:
### OpenAIEmbeddings
LanceDB has OpenAI embeddings function in the registry by default. It is registered as `openai` and here are the parameters that you can customize when creating the instances
| Parameter | Type | Default Value | Description |
|---|---|---|---|
| `name` | `str` | `"text-embedding-ada-002"` | The name of the model. |
| `dim` | `int` | Model default | For OpenAI's newer text-embedding-3 model, we can specify a dimensionality that is smaller than the 1536 size. This feature supports it |
```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
db = lancedb.connect("/tmp/db")
func = get_registry().get("openai").create(name="text-embedding-ada-002")
registry = EmbeddingFunctionRegistry.get_instance()
func = registry.get("openai").create()
class Words(LanceModel):
text: str = func.SourceField()
vector: Vector(func.ndims()) = func.VectorField()
table = db.create_table("words", schema=Words, mode="overwrite")
table = db.create_table("words", schema=Words)
table.add(
[
{"text": "hello world"},
{"text": "hello world"}
{"text": "goodbye world"}
]
)
@@ -279,18 +69,17 @@ print(actual.text)
```
### Instructor Embeddings
[Instructor](https://instructor-embedding.github.io/) is an instruction-finetuned text embedding model that can generate text embeddings tailored to any task (e.g. classification, retrieval, clustering, text evaluation, etc.) and domains (e.g. science, finance, etc.) by simply providing the task instruction, without any finetuning.
Instructor is an instruction-finetuned text embedding model that can generate text embeddings tailored to any task (e.g. classification, retrieval, clustering, text evaluation, etc.) and domains (e.g. science, finance, etc.) by simply providing the task instruction, without any finetuning.
If you want to calculate customized embeddings for specific sentences, you can follow the unified template to write instructions.
If you want to calculate customized embeddings for specific sentences, you may follow the unified template to write instructions:
!!! info
Represent the `domain` `text_type` for `task_objective`:
Represent the `domain` `text_type` for `task_objective`:
* `domain` is optional, and it specifies the domain of the text, e.g. science, finance, medicine, etc.
* `text_type` is required, and it specifies the encoding unit, e.g. sentence, document, paragraph, etc.
* `task_objective` is optional, and it specifies the objective of embedding, e.g. retrieve a document, classify the sentence, etc.
* `domain` is optional, and it specifies the domain of the text, e.g. science, finance, medicine, etc.
* `text_type` is required, and it specifies the encoding unit, e.g. sentence, document, paragraph, etc.
* `task_objective` is optional, and it specifies the objective of embedding, e.g. retrieve a document, classify the sentence, etc.
More information about the model can be found at the [source URL](https://github.com/xlang-ai/instructor-embedding).
More information about the model can be found here - https://github.com/xlang-ai/instructor-embedding
| Argument | Type | Default | Description |
|---|---|---|---|
@@ -329,198 +118,12 @@ texts = [{"text": "Capitalism has been dominant in the Western world since the e
tbl.add(texts)
```
### Gemini Embeddings
With Google's Gemini, you can represent text (words, sentences, and blocks of text) in a vectorized form, making it easier to compare and contrast embeddings. For example, two texts that share a similar subject matter or sentiment should have similar embeddings, which can be identified through mathematical comparison techniques such as cosine similarity. For more on how and why you should use embeddings, refer to the Embeddings guide.
The Gemini Embedding Model API supports various task types:
| Task Type | Description |
|-------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------|
| "`retrieval_query`" | Specifies the given text is a query in a search/retrieval setting. |
| "`retrieval_document`" | Specifies the given text is a document in a search/retrieval setting. Using this task type requires a title but is automatically proided by Embeddings API |
| "`semantic_similarity`" | Specifies the given text will be used for Semantic Textual Similarity (STS). |
| "`classification`" | Specifies that the embeddings will be used for classification. |
| "`clusering`" | Specifies that the embeddings will be used for clustering. |
Usage Example:
```python
import lancedb
import pandas as pd
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
model = get_registry().get("gemini-text").create()
class TextModel(LanceModel):
text: str = model.SourceField()
vector: Vector(model.ndims()) = model.VectorField()
df = pd.DataFrame({"text": ["hello world", "goodbye world"]})
db = lancedb.connect("~/.lancedb")
tbl = db.create_table("test", schema=TextModel, mode="overwrite")
tbl.add(df)
rs = tbl.search("hello").limit(1).to_pandas()
```
### Cohere Embeddings
Using cohere API requires cohere package, which can be installed using `pip install cohere`. Cohere embeddings are used to generate embeddings for text data. The embeddings can be used for various tasks like semantic search, clustering, and classification.
You also need to set the `COHERE_API_KEY` environment variable to use the Cohere API.
Supported models are:
```
* embed-english-v3.0
* embed-multilingual-v3.0
* embed-english-light-v3.0
* embed-multilingual-light-v3.0
* embed-english-v2.0
* embed-english-light-v2.0
* embed-multilingual-v2.0
```
Supported parameters (to be passed in `create` method) are:
| Parameter | Type | Default Value | Description |
|---|---|---|---|
| `name` | `str` | `"embed-english-v2.0"` | The model ID of the cohere model to use. Supported base models for Text Embeddings: embed-english-v3.0, embed-multilingual-v3.0, embed-english-light-v3.0, embed-multilingual-light-v3.0, embed-english-v2.0, embed-english-light-v2.0, embed-multilingual-v2.0 |
| `source_input_type` | `str` | `"search_document"` | The type of input data to be used for the source column. |
| `query_input_type` | `str` | `"search_query"` | The type of input data to be used for the query. |
Cohere supports following input types:
| Input Type | Description |
|-------------------------|---------------------------------------|
| "`search_document`" | Used for embeddings stored in a vector|
| | database for search use-cases. |
| "`search_query`" | Used for embeddings of search queries |
| | run against a vector DB |
| "`semantic_similarity`" | Specifies the given text will be used |
| | for Semantic Textual Similarity (STS) |
| "`classification`" | Used for embeddings passed through a |
| | text classifier. |
| "`clustering`" | Used for the embeddings run through a |
| | clustering algorithm |
Usage Example:
```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import EmbeddingFunctionRegistry
cohere = EmbeddingFunctionRegistry
.get_instance()
.get("cohere")
.create(name="embed-multilingual-v2.0")
class TextModel(LanceModel):
text: str = cohere.SourceField()
vector: Vector(cohere.ndims()) = cohere.VectorField()
data = [ { "text": "hello world" },
{ "text": "goodbye world" }]
db = lancedb.connect("~/.lancedb")
tbl = db.create_table("test", schema=TextModel, mode="overwrite")
tbl.add(data)
```
### Jina Embeddings
Jina embeddings are used to generate embeddings for text and image data.
You also need to set the `JINA_API_KEY` environment variable to use the Jina API.
You can find a list of supported models under [https://jina.ai/embeddings/](https://jina.ai/embeddings/)
Supported parameters (to be passed in `create` method) are:
| Parameter | Type | Default Value | Description |
|---|---|---|---|
| `name` | `str` | `"jina-clip-v1"` | The model ID of the jina model to use |
Usage Example:
```python
import os
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import EmbeddingFunctionRegistry
os.environ['JINA_API_KEY'] = 'jina_*'
jina_embed = EmbeddingFunctionRegistry.get_instance().get("jina").create(name="jina-embeddings-v2-base-en")
class TextModel(LanceModel):
text: str = jina_embed.SourceField()
vector: Vector(jina_embed.ndims()) = jina_embed.VectorField()
data = [{"text": "hello world"},
{"text": "goodbye world"}]
db = lancedb.connect("~/.lancedb-2")
tbl = db.create_table("test", schema=TextModel, mode="overwrite")
tbl.add(data)
```
### AWS Bedrock Text Embedding Functions
AWS Bedrock supports multiple base models for generating text embeddings. You need to setup the AWS credentials to use this embedding function.
You can do so by using `awscli` and also add your session_token:
```shell
aws configure
aws configure set aws_session_token "<your_session_token>"
```
to ensure that the credentials are set up correctly, you can run the following command:
```shell
aws sts get-caller-identity
```
Supported Embedding modelIDs are:
* `amazon.titan-embed-text-v1`
* `cohere.embed-english-v3`
* `cohere.embed-multilingual-v3`
Supported parameters (to be passed in `create` method) are:
| Parameter | Type | Default Value | Description |
|---|---|---|---|
| **name** | str | "amazon.titan-embed-text-v1" | The model ID of the bedrock model to use. Supported base models for Text Embeddings: amazon.titan-embed-text-v1, cohere.embed-english-v3, cohere.embed-multilingual-v3 |
| **region** | str | "us-east-1" | Optional name of the AWS Region in which the service should be called (e.g., "us-east-1"). |
| **profile_name** | str | None | Optional name of the AWS profile to use for calling the Bedrock service. If not specified, the default profile will be used. |
| **assumed_role** | str | None | Optional ARN of an AWS IAM role to assume for calling the Bedrock service. If not specified, the current active credentials will be used. |
| **role_session_name** | str | "lancedb-embeddings" | Optional name of the AWS IAM role session to use for calling the Bedrock service. If not specified, a "lancedb-embeddings" name will be used. |
| **runtime** | bool | True | Optional choice of getting different client to perform operations with the Amazon Bedrock service. |
| **max_retries** | int | 7 | Optional number of retries to perform when a request fails. |
Usage Example:
```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
model = get_registry().get("bedrock-text").create()
class TextModel(LanceModel):
text: str = model.SourceField()
vector: Vector(model.ndims()) = model.VectorField()
df = pd.DataFrame({"text": ["hello world", "goodbye world"]})
db = lancedb.connect("tmp_path")
tbl = db.create_table("test", schema=TextModel, mode="overwrite")
tbl.add(df)
rs = tbl.search("hello").limit(1).to_pandas()
```
## Multi-modal embedding functions
Multi-modal embedding functions allow you to query your table using both images and text.
### OpenClip embeddings
We support CLIP model embeddings using the open source alternative, [open-clip](https://github.com/mlfoundations/open_clip) which supports various customizations. It is registered as `open-clip` and supports the following customizations:
### OpenClipEmbeddings
We support CLIP model embeddings using the open source alternative, open-clip which supports various customizations. It is registered as `open-clip` and supports the following customizations:
| Parameter | Type | Default Value | Description |
|---|---|---|---|
@@ -530,18 +133,18 @@ We support CLIP model embeddings using the open source alternative, [open-clip](
| `batch_size` | `int` | `64` | The number of images to process in a batch. |
| `normalize` | `bool` | `True` | Whether to normalize the input images before feeding them to the model. |
This embedding function supports ingesting images as both bytes and urls. You can query them using both test and other images.
!!! info
LanceDB supports ingesting images directly from accessible links.
NOTE:
LanceDB supports ingesting images directly from accessible links.
```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
db = lancedb.connect(tmp_path)
func = get_registry.get("open-clip").create()
registry = EmbeddingFunctionRegistry.get_instance()
func = registry.get("open-clip").create()
class Images(LanceModel):
label: str
@@ -563,7 +166,7 @@ uris = [
# get each uri as bytes
image_bytes = [requests.get(uri).content for uri in uris]
table.add(
pd.DataFrame({"label": labels, "image_uri": uris, "image_bytes": image_bytes})
[{"label": labels, "image_uri": uris, "image_bytes": image_bytes}]
)
```
Now we can search using text from both the default vector column and the custom vector column
@@ -602,121 +205,4 @@ print(actual.label)
```
### Imagebind embeddings
We have support for [imagebind](https://github.com/facebookresearch/ImageBind) model embeddings. You can download our version of the packaged model via - `pip install imagebind-packaged==0.1.2`.
This function is registered as `imagebind` and supports Audio, Video and Text modalities(extending to Thermal,Depth,IMU data):
| Parameter | Type | Default Value | Description |
|---|---|---|---|
| `name` | `str` | `"imagebind_huge"` | Name of the model. |
| `device` | `str` | `"cpu"` | The device to run the model on. Can be `"cpu"` or `"gpu"`. |
| `normalize` | `bool` | `False` | set to `True` to normalize your inputs before model ingestion. |
Below is an example demonstrating how the API works:
```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
db = lancedb.connect(tmp_path)
func = get_registry.get("imagebind").create()
class ImageBindModel(LanceModel):
text: str
image_uri: str = func.SourceField()
audio_path: str
vector: Vector(func.ndims()) = func.VectorField()
# add locally accessible image paths
text_list=["A dog.", "A car", "A bird"]
image_paths=[".assets/dog_image.jpg", ".assets/car_image.jpg", ".assets/bird_image.jpg"]
audio_paths=[".assets/dog_audio.wav", ".assets/car_audio.wav", ".assets/bird_audio.wav"]
# Load data
inputs = [
{"text": a, "audio_path": b, "image_uri": c}
for a, b, c in zip(text_list, audio_paths, image_paths)
]
#create table and add data
table = db.create_table("img_bind", schema=ImageBindModel)
table.add(inputs)
```
Now, we can search using any modality:
#### image search
```python
query_image = "./assets/dog_image2.jpg" #download an image and enter that path here
actual = table.search(query_image).limit(1).to_pydantic(ImageBindModel)[0]
print(actual.text == "dog")
```
#### audio search
```python
query_audio = "./assets/car_audio2.wav" #download an audio clip and enter path here
actual = table.search(query_audio).limit(1).to_pydantic(ImageBindModel)[0]
print(actual.text == "car")
```
#### Text search
You can add any input query and fetch the result as follows:
```python
query = "an animal which flies and tweets"
actual = table.search(query).limit(1).to_pydantic(ImageBindModel)[0]
print(actual.text == "bird")
```
If you have any questions about the embeddings API, supported models, or see a relevant model missing, please raise an issue [on GitHub](https://github.com/lancedb/lancedb/issues).
### Jina Embeddings
Jina embeddings can also be used to embed both text and image data, only some of the models support image data and you can check the list
under [https://jina.ai/embeddings/](https://jina.ai/embeddings/)
Supported parameters (to be passed in `create` method) are:
| Parameter | Type | Default Value | Description |
|---|---|---|---|
| `name` | `str` | `"jina-clip-v1"` | The model ID of the jina model to use |
Usage Example:
```python
import os
import requests
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
import pandas as pd
os.environ['JINA_API_KEY'] = 'jina_*'
db = lancedb.connect("~/.lancedb")
func = get_registry().get("jina").create()
class Images(LanceModel):
label: str
image_uri: str = func.SourceField() # image uri as the source
image_bytes: bytes = func.SourceField() # image bytes as the source
vector: Vector(func.ndims()) = func.VectorField() # vector column
vec_from_bytes: Vector(func.ndims()) = func.VectorField() # Another vector column
table = db.create_table("images", schema=Images)
labels = ["cat", "cat", "dog", "dog", "horse", "horse"]
uris = [
"http://farm1.staticflickr.com/53/167798175_7c7845bbbd_z.jpg",
"http://farm1.staticflickr.com/134/332220238_da527d8140_z.jpg",
"http://farm9.staticflickr.com/8387/8602747737_2e5c2a45d4_z.jpg",
"http://farm5.staticflickr.com/4092/5017326486_1f46057f5f_z.jpg",
"http://farm9.staticflickr.com/8216/8434969557_d37882c42d_z.jpg",
"http://farm6.staticflickr.com/5142/5835678453_4f3a4edb45_z.jpg",
]
# get each uri as bytes
image_bytes = [requests.get(uri).content for uri in uris]
table.add(
pd.DataFrame({"label": labels, "image_uri": uris, "image_bytes": image_bytes})
)
```
If you have any questions about the embeddings API, supported models, or see a relevant model missing, please raise an issue.

View File

@@ -1,199 +1,89 @@
Representing multi-modal data as vector embeddings is becoming a standard practice. Embedding functions can themselves be thought of as key part of the data processing pipeline that each request has to be passed through. The assumption here is: after initial setup, these components and the underlying methodology are not expected to change for a particular project.
Representing multi-modal data as vector embeddings is becoming a standard practice. Embedding functions themselves be thought of as a part of the processing pipeline that each request(input) has to be passed through. After initial setup these components are not expected to change for a particular project.
For this purpose, LanceDB introduces an **embedding functions API**, that allow you simply set up once, during the configuration stage of your project. After this, the table remembers it, effectively making the embedding functions *disappear in the background* so you don't have to worry about manually passing callables, and instead, simply focus on the rest of your data engineering pipeline.
!!! Note "LanceDB cloud doesn't support embedding functions yet"
LanceDB Cloud does not support embedding functions yet. You need to generate embeddings before ingesting into the table or querying.
!!! warning
Using the embedding function registry means that you don't have to explicitly generate the embeddings yourself.
However, if your embedding function changes, you'll have to re-configure your table with the new embedding function
and regenerate the embeddings. In the future, we plan to support the ability to change the embedding function via
table metadata and have LanceDB automatically take care of regenerating the embeddings.
This is main motivation behind our new embedding functions API, that allow you simply set it up once and the table remembers it, effectively making the **embedding functions disappear in the background** so you don't have to worry about modelling and simply focus on the DB aspects of VectorDB.
## 1. Define the embedding function
You can simply follow these steps and forget about the details of your embedding functions as long as you don't intend to change it.
=== "Python"
In the LanceDB python SDK, we define a global embedding function registry with
many different embedding models and even more coming soon.
Here's let's an implementation of CLIP as example.
### Step 1 - Define the embedding function
We have some pre-defined embedding functions in the global registry with more coming soon. Here's let's an implementation of CLIP as example.
```
registry = EmbeddingFunctionRegistry.get_instance()
clip = registry.get("open-clip").create()
```python
from lancedb.embeddings import get_registry
```
You can also define your own embedding function by implementing the `EmbeddingFunction` abstract base interface. It subclasses PyDantic Model which can be utilized to write complex schemas simply as we'll see next!
registry = get_registry()
clip = registry.get("open-clip").create()
```
### Step 2 - Define the Data Model or Schema
Our embedding function from the previous section abstracts away all the details about the models and dimensions required to define the schema. You can simply set a feild as **source** or **vector** column. Here's how
You can also define your own embedding function by implementing the `EmbeddingFunction`
abstract base interface. It subclasses Pydantic Model which can be utilized to write complex schemas simply as we'll see next!
```python
class Pets(LanceModel):
vector: Vector(clip.ndims) = clip.VectorField()
image_uri: str = clip.SourceField()
=== "TypeScript"
In the TypeScript SDK, the choices are more limited. For now, only the OpenAI
embedding function is available.
```
`VectorField` tells LanceDB to use the clip embedding function to generate query embeddings for `vector` column & `SourceField` tells that when adding data, automatically use the embedding function to encode `image_uri`.
```javascript
import * as lancedb from '@lancedb/lancedb'
import { getRegistry } from '@lancedb/lancedb/embeddings'
// You need to provide an OpenAI API key
const apiKey = "sk-..."
// The embedding function will create embeddings for the 'text' column
const func = getRegistry().get("openai").create({apiKey})
```
=== "Rust"
In the Rust SDK, the choices are more limited. For now, only the OpenAI
embedding function is available. But unlike the Python and TypeScript SDKs, you need manually register the OpenAI embedding function.
### Step 3 - Create LanceDB Table
Now that we have chosen/defined our embedding function and the schema, we can create the table
```toml
// Make sure to include the `openai` feature
[dependencies]
lancedb = {version = "*", features = ["openai"]}
```
```python
db = lancedb.connect("~/lancedb")
table = db.create_table("pets", schema=Pets)
```rust
--8<-- "rust/lancedb/examples/openai.rs:imports"
--8<-- "rust/lancedb/examples/openai.rs:openai_embeddings"
```
```
That's it! We have ingested all the information needed to embed source and query inputs. We can now forget about the model and dimension details and start to build or VectorDB
## 2. Define the data model or schema
### Step 4 - Ingest lots of data and run vector search!
Now you can just add the data and it'll be vectorized automatically
=== "Python"
The embedding function defined above abstracts away all the details about the models and dimensions required to define the schema. You can simply set a field as **source** or **vector** column. Here's how:
```python
table.add([{"image_uri": u} for u in uris])
```
```python
class Pets(LanceModel):
vector: Vector(clip.ndims()) = clip.VectorField()
image_uri: str = clip.SourceField()
```
Our OpenCLIP query embedding function support querying via both text and images.
`VectorField` tells LanceDB to use the clip embedding function to generate query embeddings for the `vector` column and `SourceField` ensures that when adding data, we automatically use the specified embedding function to encode `image_uri`.
```python
result = table.search("dog")
```
=== "TypeScript"
Let's query an image
For the TypeScript SDK, a schema can be inferred from input data, or an explicit
Arrow schema can be provided.
```python
p = Path("path/to/images/samoyed_100.jpg")
query_image = Image.open(p)
table.search(query_image)
## 3. Create table and add data
Now that we have chosen/defined our embedding function and the schema,
we can create the table and ingest data without needing to explicitly generate
the embeddings at all:
=== "Python"
```python
db = lancedb.connect("~/lancedb")
table = db.create_table("pets", schema=Pets)
table.add([{"image_uri": u} for u in uris])
```
=== "TypeScript"
=== "@lancedb/lancedb"
```ts
--8<-- "nodejs/examples/embedding.ts:imports"
--8<-- "nodejs/examples/embedding.ts:embedding_function"
```
=== "vectordb (deprecated)"
```ts
const db = await lancedb.connect("data/sample-lancedb");
const data = [
{ text: "pepperoni"},
{ text: "pineapple"}
]
const table = await db.createTable("vectors", data, embedding)
```
## 4. Querying your table
Not only can you forget about the embeddings during ingestion, you also don't
need to worry about it when you query the table:
=== "Python"
Our OpenCLIP query embedding function supports querying via both text and images:
```python
results = (
table.search("dog")
.limit(10)
.to_pandas()
)
```
Or we can search using an image:
```python
p = Path("path/to/images/samoyed_100.jpg")
query_image = Image.open(p)
results = (
table.search(query_image)
.limit(10)
.to_pandas()
)
```
Both of the above snippet returns a pandas DataFrame with the 10 closest vectors to the query.
=== "TypeScript"
=== "@lancedb/lancedb"
```ts
const results = await table.search("What's the best pizza topping?")
.limit(10)
.toArray()
```
=== "vectordb (deprecated)
```ts
const results = await table
.search("What's the best pizza topping?")
.limit(10)
.execute()
```
The above snippet returns an array of records with the top 10 nearest neighbors to the query.
---
## Rate limit Handling
`EmbeddingFunction` class wraps the calls for source and query embedding generation inside a rate limit handler that retries the requests with exponential backoff after successive failures. By default, the maximum retires is set to 7. You can tune it by setting it to a different number, or disable it by setting it to 0.
An example of how to do this is shown below:
```
### Rate limit Handling
`EmbeddingFunction` class wraps the calls for source and query embedding generation inside a rate limit handler that retries the requests with exponential backoff after successive failures. By default the maximum retires is set to 7. You can tune it by setting it to a different number or disable it by setting it to 0.
Example
----
```python
clip = registry.get("open-clip").create() # Defaults to 7 max retries
clip = registry.get("open-clip").create(max_retries=10) # Increase max retries to 10
clip = registry.get("open-clip").create(max_retries=0) # Retries disabled
```
````
!!! note
Embedding functions can also fail due to other errors that have nothing to do with rate limits.
This is why the error is also logged.
## Some fun with Pydantic
LanceDB is integrated with Pydantic, which was used in the example above to define the schema in Python. It's also used behind the scenes by the embedding function API to ingest useful information as table metadata.
You can also use the integration for adding utility operations in the schema. For example, in our multi-modal example, you can search images using text or another image. Let's define a utility function to plot the image.
NOTE:
Embedding functions can also fail due to other errors that have nothing to do with rate limits. This is why the error is also logged.
### A little fun with PyDantic
LanceDB is integrated with PyDantic. Infact we've used the integration in the above example to define the schema. It is also being used behing the scene by the embdding function API to ingest useful information as table metadata.
You can also use it for adding utility operations in the schema. For example, in our multi-modal example, you can search images using text or another image. Let us define a utility function to plot the image.
```python
class Pets(LanceModel):
vector: Vector(clip.ndims()) = clip.VectorField()
vector: Vector(clip.ndims) = clip.VectorField()
image_uri: str = clip.SourceField()
@property
def image(self):
return Image.open(self.image_uri)
```
Now, you can covert your search results to a Pydantic model and use this property.
Now, you can covert your search results to pydantic model and use this property.
```python
rs = table.search(query_image).limit(3).to_pydantic(Pets)
@@ -202,5 +92,4 @@ rs[2].image
![](../assets/dog_clip_output.png)
Now that you have the basic idea about LanceDB embedding functions and the embedding function registry,
let's dive deeper into defining your own [custom functions](./custom_embedding_function.md).
Now that you've the basic idea about LanceDB embedding function, let us now dive deeper into the API that you can use to implement your own embedding functions!

View File

@@ -1,134 +1,149 @@
Due to the nature of vector embeddings, they can be used to represent any kind of data, from text to images to audio.
This makes them a very powerful tool for machine learning practitioners.
However, there's no one-size-fits-all solution for generating embeddings - there are many different libraries and APIs
(both commercial and open source) that can be used to generate embeddings from structured/unstructured data.
# Embedding
LanceDB supports 3 methods of working with embeddings.
Embeddings are high dimensional floating-point vector representations of your data or query. Anything can be embedded using some embedding model or function. Position of embedding in a high dimensional vector space has semantic significance to a degree that depends on the type of modal and training. These embeddings when projected in a 2-D space generally group similar entities close-by forming groups.
1. You can manually generate embeddings for the data and queries. This is done outside of LanceDB.
2. You can use the built-in [embedding functions](./embedding_functions.md) to embed the data and queries in the background.
3. You can define your own [custom embedding function](./custom_embedding_function.md)
that extends the default embedding functions.
![](../assets/embedding_intro.png)
For python users, there is also a legacy [with_embeddings API](./legacy.md).
It is retained for compatibility and will be removed in a future version.
# Creating an embedding function
## Quickstart
LanceDB supports 2 major ways of vectorizing your data, explicit and implicit.
To get started with embeddings, you can use the built-in embedding functions.
1. By manually embedding the data before ingesting in the table
2. By automatically embedding the data and query as they come, by ingesting embedding function information in the table itself! Covered in [Next Section](embedding_functions.md)
### OpenAI Embedding function
Whatever workflow you prefer, we have the tools to support you.
## Explicit Vectorization
LanceDB registers the OpenAI embeddings function in the registry as `openai`. You can pass any supported model name to the `create`. By default it uses `"text-embedding-ada-002"`.
In this workflow, you can create your embedding function and vectorize your data using lancedb's `with_embedding` function. Let's look at some examples.
=== "Python"
### HuggingFace example
```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
db = lancedb.connect("/tmp/db")
func = get_registry().get("openai").create(name="text-embedding-ada-002")
class Words(LanceModel):
text: str = func.SourceField()
vector: Vector(func.ndims()) = func.VectorField()
table = db.create_table("words", schema=Words, mode="overwrite")
table.add(
[
{"text": "hello world"},
{"text": "goodbye world"}
]
)
query = "greetings"
actual = table.search(query).limit(1).to_pydantic(Words)[0]
print(actual.text)
```
=== "TypeScript"
```typescript
--8<--- "nodejs/examples/embedding.ts:imports"
--8<--- "nodejs/examples/embedding.ts:openai_embeddings"
```
=== "Rust"
```rust
--8<--- "rust/lancedb/examples/openai.rs:imports"
--8<--- "rust/lancedb/examples/openai.rs:openai_embeddings"
```
### Sentence Transformers Embedding function
LanceDB registers the Sentence Transformers embeddings function in the registry as `sentence-transformers`. You can pass any supported model name to the `create`. By default it uses `"sentence-transformers/paraphrase-MiniLM-L6-v2"`.
=== "Python"
```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
db = lancedb.connect("/tmp/db")
model = get_registry().get("sentence-transformers").create(name="BAAI/bge-small-en-v1.5", device="cpu")
class Words(LanceModel):
text: str = model.SourceField()
vector: Vector(model.ndims()) = model.VectorField()
table = db.create_table("words", schema=Words)
table.add(
[
{"text": "hello world"},
{"text": "goodbye world"}
]
)
query = "greetings"
actual = table.search(query).limit(1).to_pydantic(Words)[0]
print(actual.text)
```
=== "TypeScript"
Coming Soon!
=== "Rust"
Coming Soon!
### Jina Embeddings
LanceDB registers the JinaAI embeddings function in the registry as `jina`. You can pass any supported model name to the `create`. By default it uses `"jina-clip-v1"`.
`jina-clip-v1` can handle both text and images and other models only support `text`.
You need to pass `JINA_API_KEY` in the environment variable or pass it as `api_key` to `create` method.
One popular free option would be to use the [sentence-transformers](https://www.sbert.net/) library from HuggingFace.
You can install this using pip: `pip install sentence-transformers`.
```python
import os
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
os.environ['JINA_API_KEY'] = "jina_*"
from sentence_transformers import SentenceTransformer
db = lancedb.connect("/tmp/db")
func = get_registry().get("jina").create(name="jina-clip-v1")
name="paraphrase-albert-small-v2"
model = SentenceTransformer(name)
class Words(LanceModel):
text: str = func.SourceField()
vector: Vector(func.ndims()) = func.VectorField()
table = db.create_table("words", schema=Words, mode="overwrite")
table.add(
[
{"text": "hello world"},
{"text": "goodbye world"}
]
)
query = "greetings"
actual = table.search(query).limit(1).to_pydantic(Words)[0]
print(actual.text)
# used for both training and querying
def embed_func(batch):
return [model.encode(sentence) for sentence in batch]
```
Please note that currently HuggingFace is only supported in the Python SDK.
### OpenAI example
You can also use an external API like OpenAI to generate embeddings
=== "Python"
```python
import openai
import os
# Configuring the environment variable OPENAI_API_KEY
if "OPENAI_API_KEY" not in os.environ:
# OR set the key here as a variable
openai.api_key = "sk-..."
# verify that the API key is working
assert len(openai.Model.list()["data"]) > 0
def embed_func(c):
rs = openai.Embedding.create(input=c, engine="text-embedding-ada-002")
return [record["embedding"] for record in rs["data"]]
```
=== "Javascript"
```javascript
const lancedb = require("vectordb");
// You need to provide an OpenAI API key
const apiKey = "sk-..."
// The embedding function will create embeddings for the 'text' column
const embedding = new lancedb.OpenAIEmbeddingFunction('text', apiKey)
```
## Applying an embedding function
=== "Python"
Using an embedding function, you can apply it to raw data
to generate embeddings for each row.
Say if you have a pandas DataFrame with a `text` column that you want to be embedded,
you can use the [with_embeddings](https://lancedb.github.io/lancedb/python/python/#lancedb.embeddings.with_embeddings)
function to generate embeddings and add create a combined pyarrow table:
```python
import pandas as pd
from lancedb.embeddings import with_embeddings
df = pd.DataFrame([{"text": "pepperoni"},
{"text": "pineapple"}])
data = with_embeddings(embed_func, df)
# The output is used to create / append to a table
# db.create_table("my_table", data=data)
```
If your data is in a different column, you can specify the `column` kwarg to `with_embeddings`.
By default, LanceDB calls the function with batches of 1000 rows. This can be configured
using the `batch_size` parameter to `with_embeddings`.
LanceDB automatically wraps the function with retry and rate-limit logic to ensure the OpenAI
API call is reliable.
=== "Javascript"
Using an embedding function, you can apply it to raw data
to generate embeddings for each row.
You can just pass the embedding function created previously and LanceDB will automatically generate
embededings for your data.
```javascript
const db = await lancedb.connect("data/sample-lancedb");
const data = [
{ text: 'pepperoni' },
{ text: 'pineapple' }
]
const table = await db.createTable('vectors', data, embedding)
```
## Searching with an embedding function
At inference time, you also need the same embedding function to embed your query text.
It's important that you use the same model / function otherwise the embedding vectors don't
belong in the same latent space and your results will be nonsensical.
=== "Python"
```python
query = "What's the best pizza topping?"
query_vector = embed_func([query])[0]
tbl.search(query_vector).limit(10).to_pandas()
```
The above snippet returns a pandas DataFrame with the 10 closest vectors to the query.
=== "Javascript"
```javascript
const results = await table
.search("What's the best pizza topping?")
.limit(10)
.execute()
```
The above snippet returns an array of records with the 10 closest vectors to the query.
## Implicit vectorization / Ingesting embedding functions
Representing multi-modal data as vector embeddings is becoming a standard practice. Embedding functions themselves be thought of as a part of the processing pipeline that each request(input) has to be passed through. After initial setup these components are not expected to change for a particular project.
This is main motivation behind our new embedding functions API, that allow you simply set it up once and the table remembers it, effectively making the **embedding functions disappear in the background** so you don't have to worry about modelling and simply focus on the DB aspects of VectorDB.
Learn more in the Next Section

View File

@@ -1,99 +0,0 @@
The legacy `with_embeddings` API is for Python only and is deprecated.
### Hugging Face
The most popular open source option is to use the [sentence-transformers](https://www.sbert.net/)
library, which can be installed via pip.
```bash
pip install sentence-transformers
```
The example below shows how to use the `paraphrase-albert-small-v2` model to generate embeddings
for a given document.
```python
from sentence_transformers import SentenceTransformer
name="paraphrase-albert-small-v2"
model = SentenceTransformer(name)
# used for both training and querying
def embed_func(batch):
return [model.encode(sentence) for sentence in batch]
```
### OpenAI
Another popular alternative is to use an external API like OpenAI's [embeddings API](https://platform.openai.com/docs/guides/embeddings/what-are-embeddings).
```python
import openai
import os
# Configuring the environment variable OPENAI_API_KEY
if "OPENAI_API_KEY" not in os.environ:
# OR set the key here as a variable
openai.api_key = "sk-..."
client = openai.OpenAI()
def embed_func(c):
rs = client.embeddings.create(input=c, model="text-embedding-ada-002")
return [record.embedding for record in rs["data"]]
```
## Applying an embedding function to data
Using an embedding function, you can apply it to raw data
to generate embeddings for each record.
Say you have a pandas DataFrame with a `text` column that you want embedded,
you can use the `with_embeddings` function to generate embeddings and add them to
an existing table.
```python
import pandas as pd
from lancedb.embeddings import with_embeddings
df = pd.DataFrame(
[
{"text": "pepperoni"},
{"text": "pineapple"}
]
)
data = with_embeddings(embed_func, df)
# The output is used to create / append to a table
tbl = db.create_table("my_table", data=data)
```
If your data is in a different column, you can specify the `column` kwarg to `with_embeddings`.
By default, LanceDB calls the function with batches of 1000 rows. This can be configured
using the `batch_size` parameter to `with_embeddings`.
LanceDB automatically wraps the function with retry and rate-limit logic to ensure the OpenAI
API call is reliable.
## Querying using an embedding function
!!! warning
At query time, you **must** use the same embedding function you used to vectorize your data.
If you use a different embedding function, the embeddings will not reside in the same vector
space and the results will be nonsensical.
=== "Python"
```python
query = "What's the best pizza topping?"
query_vector = embed_func([query])[0]
results = (
tbl.search(query_vector)
.limit(10)
.to_pandas()
)
```
The above snippet returns a pandas DataFrame with the 10 closest vectors to the query.

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@@ -1,17 +0,0 @@
# Examples: Python
To help you get started, we provide some examples, projects and applications that use the LanceDB Python API. You can always find the latest examples in our [VectorDB Recipes](https://github.com/lancedb/vectordb-recipes) repository.
| Example | Interactive Envs | Scripts |
|-------- | ---------------- | ------ |
| | | |
| [Youtube transcript search bot](https://github.com/lancedb/vectordb-recipes/tree/main/examples/youtube_bot/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/youtube_bot/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a>| [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/youtube_bot/main.py)|
| [Langchain: Code Docs QA bot](https://github.com/lancedb/vectordb-recipes/tree/main/examples/Code-Documentation-QA-Bot/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/Code-Documentation-QA-Bot/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a>| [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/Code-Documentation-QA-Bot/main.py) |
| [AI Agents: Reducing Hallucination](https://github.com/lancedb/vectordb-recipes/tree/main/examples/reducing_hallucinations_ai_agents/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/reducing_hallucinations_ai_agents/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a>| [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/reducing_hallucinations_ai_agents/main.py)|
| [Multimodal CLIP: DiffusionDB](https://github.com/lancedb/vectordb-recipes/tree/main/examples/multimodal_clip/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/multimodal_clip/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a>| [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/multimodal_clip/main.py) |
| [Multimodal CLIP: Youtube videos](https://github.com/lancedb/vectordb-recipes/tree/main/examples/multimodal_video_search/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/multimodal_video_search/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a>| [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/multimodal_video_search/main.py) |
| [Movie Recommender](https://github.com/lancedb/vectordb-recipes/tree/main/examples/movie-recommender/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/movie-recommender/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> | [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/movie-recommender/main.py) |
| [Audio Search](https://github.com/lancedb/vectordb-recipes/tree/main/examples/audio_search/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/audio_search/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> | [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/audio_search/main.py) |
| [Multimodal Image + Text Search](https://github.com/lancedb/vectordb-recipes/tree/main/examples/multimodal_search/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/multimodal_search/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> | [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/multimodal_search/main.py) |
| [Evaluating Prompts with Prompttools](https://github.com/lancedb/vectordb-recipes/tree/main/examples/prompttools-eval-prompts/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/prompttools-eval-prompts/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> | |

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@@ -1,3 +0,0 @@
# Examples: Rust
Our Rust SDK is now stable. Examples are coming soon.

View File

@@ -43,7 +43,7 @@ pip install lancedb
We also need to install a specific commit of `tantivy`, a dependency of the LanceDB full text search engine we will use later in this guide:
```
pip install tantivy
pip install tantivy@git+https://github.com/quickwit-oss/tantivy-py#164adc87e1a033117001cf70e38c82a53014d985
```
Create a new Python file and add the following code:

View File

@@ -1,14 +1,21 @@
# Example projects and recipes
# Examples
## Recipes and example code
Here are some of the examples, projects and applications using LanceDB python library. Some examples are covered in detail in the next sections. You can find more on [VectorDB Recipes](https://github.com/lancedb/vectordb-recipes)
LanceDB provides language APIs, allowing you to embed a database in your language of choice.
| Example | Interactive Envs | Scripts |
|-------- | ---------------- | ------ |
| | | |
| [Youtube transcript search bot](https://github.com/lancedb/vectordb-recipes/tree/main/examples/youtube_bot/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/youtube_bot/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a>| [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/youtube_bot/main.py)|
| [Langchain: Code Docs QA bot](https://github.com/lancedb/vectordb-recipes/tree/main/examples/Code-Documentation-QA-Bot/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/Code-Documentation-QA-Bot/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a>| [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/Code-Documentation-QA-Bot/main.py) |
| [AI Agents: Reducing Hallucination](https://github.com/lancedb/vectordb-recipes/tree/main/examples/reducing_hallucinations_ai_agents/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/reducing_hallucinations_ai_agents/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a>| [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/reducing_hallucinations_ai_agents/main.py)|
| [Multimodal CLIP: DiffusionDB](https://github.com/lancedb/vectordb-recipes/tree/main/examples/multimodal_clip/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/multimodal_clip/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a>| [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/multimodal_clip/main.py) |
| [Multimodal CLIP: Youtube videos](https://github.com/lancedb/vectordb-recipes/tree/main/examples/multimodal_video_search/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/multimodal_video_search/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a>| [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/multimodal_video_search/main.py) |
| [Movie Recommender](https://github.com/lancedb/vectordb-recipes/tree/main/examples/movie-recommender/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/movie-recommender/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> | [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/movie-recommender/main.py) |
| [Audio Search](https://github.com/lancedb/vectordb-recipes/tree/main/examples/audio_search/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/audio_search/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> | [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/audio_search/main.py) |
| [Multimodal Image + Text Search](https://github.com/lancedb/vectordb-recipes/tree/main/examples/multimodal_search/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/multimodal_search/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> | [![Python](https://img.shields.io/badge/python-3670A0?style=for-the-badge&logo=python&logoColor=ffdd54)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/multimodal_search/main.py) |
| [Evaluating Prompts with Prompttools](https://github.com/lancedb/vectordb-recipes/tree/main/examples/prompttools-eval-prompts/) | <a href="https://colab.research.google.com/github/lancedb/vectordb-recipes/blob/main/examples/prompttools-eval-prompts/main.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a> | |
* 🐍 [Python](examples_python.md) examples
* 👾 [JavaScript](examples_js.md) examples
* 🦀 Rust examples (coming soon)
## Applications powered by LanceDB
## Projects & Applications powered by LanceDB
| Project Name | Description | Screenshot |
|-----------------------------------------------------|----------------------------------------------------------------------------------------------------------------------|-------------------------------------------|

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@@ -1,6 +1,7 @@
# Examples: JavaScript
# Examples
To help you get started, we provide some examples, projects and applications that use the LanceDB JavaScript API. You can always find the latest examples in our [VectorDB Recipes](https://github.com/lancedb/vectordb-recipes) repository.
Here are some of the examples, projects and applications using vectordb native javascript library.
Some examples are covered in detail in the next sections. You can find more on [VectorDB Recipes](https://github.com/lancedb/vectordb-recipes)
| Example | Scripts |
|-------- | ------ |
@@ -9,3 +10,10 @@ To help you get started, we provide some examples, projects and applications tha
| [Langchain: Code Docs QA bot](https://github.com/lancedb/vectordb-recipes/tree/main/examples/Code-Documentation-QA-Bot/) | [![JavaScript](https://img.shields.io/badge/javascript-%23323330.svg?style=for-the-badge&logo=javascript&logoColor=%23F7DF1E)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/Code-Documentation-QA-Bot/index.js)|
| [AI Agents: Reducing Hallucination](https://github.com/lancedb/vectordb-recipes/tree/main/examples/reducing_hallucinations_ai_agents/) | [![JavaScript](https://img.shields.io/badge/javascript-%23323330.svg?style=for-the-badge&logo=javascript&logoColor=%23F7DF1E)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/reducing_hallucinations_ai_agents/index.js)|
| [TransformersJS Embedding example](https://github.com/lancedb/vectordb-recipes/tree/main/examples/js-transformers/) | [![JavaScript](https://img.shields.io/badge/javascript-%23323330.svg?style=for-the-badge&logo=javascript&logoColor=%23F7DF1E)](https://github.com/lancedb/vectordb-recipes/tree/main/examples/js-transformers/index.js) |
## Projects & Applications
| Project Name | Description | Screenshot |
|-----------------------------------------------------|----------------------------------------------------------------------------------------------------------------------|-------------------------------------------|
| [YOLOExplorer](https://github.com/lancedb/yoloexplorer) | Iterate on your YOLO / CV datasets using SQL, Vector semantic search, and more within seconds | ![YOLOExplorer](https://github.com/lancedb/vectordb-recipes/assets/15766192/ae513a29-8f15-4e0b-99a1-ccd8272b6131) |
| [Website Chatbot (Deployable Vercel Template)](https://github.com/lancedb/lancedb-vercel-chatbot) | Create a chatbot from the sitemap of any website/docs of your choice. Built using vectorDB serverless native javascript package. | ![Chatbot](../assets/vercel-template.gif) |

View File

@@ -1,5 +1,6 @@
import pickle
import re
import sys
import zipfile
from pathlib import Path
@@ -78,10 +79,7 @@ def qanda_langchain(query):
download_docs()
docs = store_docs()
text_splitter = RecursiveCharacterTextSplitter(
chunk_size=1000,
chunk_overlap=200,
)
text_splitter = RecursiveCharacterTextSplitter(chunk_size=1000, chunk_overlap=200,)
documents = text_splitter.split_documents(docs)
embeddings = OpenAIEmbeddings()

View File

@@ -1,79 +0,0 @@
// Creates an SVG robot icon (from Lucide)
function robotSVG() {
var svg = document.createElementNS("http://www.w3.org/2000/svg", "svg");
svg.setAttribute("width", "24");
svg.setAttribute("height", "24");
svg.setAttribute("viewBox", "0 0 24 24");
svg.setAttribute("fill", "none");
svg.setAttribute("stroke", "currentColor");
svg.setAttribute("stroke-width", "2");
svg.setAttribute("stroke-linecap", "round");
svg.setAttribute("stroke-linejoin", "round");
svg.setAttribute("class", "lucide lucide-bot-message-square");
var path1 = document.createElementNS("http://www.w3.org/2000/svg", "path");
path1.setAttribute("d", "M12 6V2H8");
svg.appendChild(path1);
var path2 = document.createElementNS("http://www.w3.org/2000/svg", "path");
path2.setAttribute("d", "m8 18-4 4V8a2 2 0 0 1 2-2h12a2 2 0 0 1 2 2v8a2 2 0 0 1-2 2Z");
svg.appendChild(path2);
var path3 = document.createElementNS("http://www.w3.org/2000/svg", "path");
path3.setAttribute("d", "M2 12h2");
svg.appendChild(path3);
var path4 = document.createElementNS("http://www.w3.org/2000/svg", "path");
path4.setAttribute("d", "M9 11v2");
svg.appendChild(path4);
var path5 = document.createElementNS("http://www.w3.org/2000/svg", "path");
path5.setAttribute("d", "M15 11v2");
svg.appendChild(path5);
var path6 = document.createElementNS("http://www.w3.org/2000/svg", "path");
path6.setAttribute("d", "M20 12h2");
svg.appendChild(path6);
return svg
}
// Creates the Fluidic Chatbot buttom
function fluidicButton() {
var btn = document.createElement("a");
btn.href = "https://asklancedb.com";
btn.target = "_blank";
btn.style.position = "fixed";
btn.style.fontWeight = "bold";
btn.style.fontSize = ".8rem";
btn.style.right = "10px";
btn.style.bottom = "10px";
btn.style.width = "80px";
btn.style.height = "80px";
btn.style.background = "linear-gradient(135deg, #7C5EFF 0%, #625eff 100%)";
btn.style.color = "white";
btn.style.borderRadius = "5px";
btn.style.display = "flex";
btn.style.flexDirection = "column";
btn.style.justifyContent = "center";
btn.style.alignItems = "center";
btn.style.zIndex = "1000";
btn.style.opacity = "0";
btn.style.boxShadow = "0 0 0 rgba(0, 0, 0, 0)";
btn.style.transition = "opacity 0.2s ease-in, box-shadow 0.2s ease-in";
setTimeout(function() {
btn.style.opacity = "1";
btn.style.boxShadow = "0 0 .2rem #0000001a,0 .2rem .4rem #0003"
}, 0);
return btn
}
document.addEventListener("DOMContentLoaded", function() {
var btn = fluidicButton()
btn.appendChild(robotSVG());
var text = document.createTextNode("Ask AI");
btn.appendChild(text);
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This section covers some common questions and issues that you may encounter when using LanceDB.
### Is LanceDB open source?
Yes, LanceDB is an open source vector database available under an Apache 2.0 license. We also have a serverless SaaS solution, LanceDB Cloud, available under a commercial license.
### What is the difference between Lance and LanceDB?
[Lance](https://github.com/lancedb/lance) is a modern columnar data format for AI, written in Rust 🦀. Its perfect for building search engines, feature stores and being the foundation of large-scale ML training jobs requiring high performance IO and shuffles. It also has native support for storing, querying, and inspecting deeply nested data for robotics or large blobs like images, point clouds, and more.
LanceDB is the vector database thats built on top of Lance, and utilizes the underlying optimized storage format to build efficient disk-based indexes that power semantic search & retrieval applications, from RAGs to QA Bots to recommender systems.
### Why invent another data format instead of using Parquet?
As we mention in our talk titled “[Lance, a modern columnar data format](https://www.youtube.com/watch?v=ixpbVyrsuL8)”, Parquet and other tabular formats that derive from it are rather dated (Parquet is over 10 years old), especially when it comes to random access on vectors. We needed a format thats able to handle the complex trade-offs involved in shuffling, scanning, OLAP and filtering large datasets involving vectors, and our extensive experiments with Parquet didn't yield sufficient levels of performance for modern ML. [Our benchmarks](https://blog.lancedb.com/benchmarking-random-access-in-lance-ed690757a826) show that Lance is up to 1000x faster than Parquet for random access, which we believe justifies our decision to create a new data format for AI.
### Why build in Rust? 🦀
We believe that the Rust ecosystem has attained mainstream maturity and that Rust will form the underpinnings of large parts of the data and ML landscape in a few years. Performance, latency and reliability are paramount to a vector DB, and building in Rust allows us to iterate and release updates more rapidly due to Rusts safety guarantees. Both Lance (the data format) and LanceDB (the database) are written entirely in Rust. We also provide Python, JavaScript, and Rust client libraries to interact with the database.
### What is the difference between LanceDB OSS and LanceDB Cloud?
LanceDB OSS is an **embedded** (in-process) solution that can be used as the vector store of choice for your LLM and RAG applications. It can be embedded inside an existing application backend, or used in-process alongside existing ML and data engineering pipelines.
LanceDB Cloud is a **serverless** solution — the database and data sit on the cloud and we manage the scalability of the application side via a remote client, without the need to manage any infrastructure.
Both flavors of LanceDB benefit from the blazing fast Lance data format and are built on the same open source foundations.
### What makes LanceDB different?
LanceDB is among the few embedded vector DBs out there that we believe can unlock a whole new class of LLM-powered applications in the browser or via edge functions. Lances multi-modal nature allows you to store the raw data, metadata and the embeddings all at once, unlike other solutions that typically store just the embeddings and metadata.
The Lance data format that powers our storage system also provides true zero-copy access and seamless interoperability with numerous other data formats (like Pandas, Polars, Pydantic) via Apache Arrow, as well as automatic data versioning and data management without needing extra infrastructure.
### How large of a dataset can LanceDB handle?
LanceDB and its underlying data format, Lance, are built to scale to really large amounts of data (hundreds of terabytes). We are currently working with customers who regularly perform operations on 200M+ vectors, and were fast approaching billion scale and beyond, which are well-handled by our disk-based indexes, without you having to break the bank.
### Do I need to build an ANN index to run vector search?
No. LanceDB is blazing fast (due to its disk-based index) for even brute force kNN search, within reason. In our benchmarks, computing 100K pairs of 1000-dimension vectors takes less than 20ms. For small datasets of ~100K records or applications that can accept ~100ms latency, an ANN index is usually not necessary.
For large-scale (>1M) or higher dimension vectors, it is beneficial to create an ANN index. See the [ANN indexes](ann_indexes.md) section for more details.
### Does LanceDB support full-text search?
Yes, LanceDB supports full-text search (FTS) via [Tantivy](https://github.com/quickwit-oss/tantivy). Our current FTS integration is Python-only, and our goal is to push it down to the Rust level in future versions to enable much more powerful search capabilities available to our Python, JavaScript and Rust clients. Follow along in the [Github issue](https://github.com/lancedb/lance/issues/1195)
### How can I speed up data inserts?
It's highly recommend to perform bulk inserts via batches (for e.g., Pandas DataFrames or lists of dicts in Python) to speed up inserts for large datasets. Inserting records one at a time is slow and can result in suboptimal performance because each insert creates a new data fragment on disk. Batching inserts allows LanceDB to create larger fragments (and their associated manifests), which are more efficient to read and write.
### Do I need to set a refine factor when using an index?
Yes. LanceDB uses PQ, or Product Quantization, to compress vectors and speed up search when using an ANN index. However, because PQ is a lossy compression algorithm, it tends to reduce recall while also reducing the index size. To address this trade-off, we introduce a process called **refinement**. The normal process computes distances by operating on the compressed PQ vectors. The refinement factor (*rf*) is a multiplier that takes the top-k similar PQ vectors to a given query, fetches `rf * k` *full* vectors and computes the raw vector distances between them and the query vector, reordering the top-k results based on these scores instead.
For example, if you're retrieving the top 10 results and set `refine_factor` to 25, LanceDB will fetch the 250 most similar vectors (according to PQ), compute the distances again based on the full vectors for those 250 and then re-rank based on their scores. This can significantly improve recall, with a small added latency cost (typically a few milliseconds), so it's recommended you set a `refine_factor` of anywhere between 5-50 and measure its impact on latency prior to deploying your solution.
### How can I improve IVF-PQ recall while keeping latency low?
When using an IVF-PQ index, there's a trade-off between recall and latency at query time. You can improve recall by increasing the number of probes and the `refine_factor`. In our benchmark on the GIST-1M dataset, we show that it's possible to achieve >0.95 recall with a latency of under 10 ms on most systems, using ~50 probes and a `refine_factor` of 50. This is, of course, subject to the dataset at hand and a quick sensitivity study can be performed on your own data. You can find more details on the benchmark in our [blog post](https://blog.lancedb.com/benchmarking-lancedb-92b01032874a).
![](assets/recall-vs-latency.webp)
### How do I connect to MinIO?
MinIO supports an S3 compatible API. In order to connect to a MinIO instance, you need to:
- Set the envvar `AWS_ENDPOINT` to the URL of your MinIO API
- Set the envvars `AWS_ACCESS_KEY_ID` and `AWS_SECRET_ACCESS_KEY` with your MinIO credential
- Call `lancedb.connect("s3://minio_bucket_name")`
### Where can I find benchmarks for LanceDB?
Refer to this [post](https://blog.lancedb.com/benchmarking-lancedb-92b01032874a) for recent benchmarks.
### How much data can LanceDB practically manage without effecting performance?
We target good performance on ~10-50 billion rows and ~10-30 TB of data.
### Does LanceDB support concurrent operations?
LanceDB can handle concurrent reads very well, and can scale horizontally. The main constraint is how well the [storage layer](https://lancedb.github.io/lancedb/concepts/storage/) you've chosen scales. For writes, we support concurrent writing, though too many concurrent writers can lead to failing writes as there is a limited number of times a writer retries a commit
!!! info "Multiprocessing with LanceDB"
For multiprocessing you should probably not use ```fork``` as lance is multi-threaded internally and ```fork``` and multi-thread do not work well.[Refer to this discussion](https://discuss.python.org/t/concerns-regarding-deprecation-of-fork-with-alive-threads/33555)

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# Full-text search
LanceDB provides support for full-text search via [Tantivy](https://github.com/quickwit-oss/tantivy) (currently Python only), allowing you to incorporate keyword-based search (based on BM25) in your retrieval solutions. Our goal is to push the FTS integration down to the Rust level in the future, so that it's available for Rust and JavaScript users as well. Follow along at [this Github issue](https://github.com/lancedb/lance/issues/1195)
# [EXPERIMENTAL] Full text search
LanceDB now provides experimental support for full text search.
This is currently Python only. We plan to push the integration down to Rust in the future
to make this available for JS as well.
## Installation
To use full-text search, install the dependency [`tantivy-py`](https://github.com/quickwit-oss/tantivy-py):
To use full text search, you must install the dependency `tantivy-py`:
# tantivy 0.20.1
```sh
# Say you want to use tantivy==0.20.1
pip install tantivy==0.20.1
```
## Example
Consider that we have a LanceDB table named `my_table`, whose string column `text` we want to index and query via keyword search.
## Quickstart
Assume:
1. `table` is a LanceDB Table
2. `text` is the name of the `Table` column that we want to index
For example,
```python
import lancedb
@@ -22,51 +28,35 @@ import lancedb
uri = "data/sample-lancedb"
db = lancedb.connect(uri)
table = db.create_table(
"my_table",
data=[
{"vector": [3.1, 4.1], "text": "Frodo was a happy puppy"},
{"vector": [5.9, 26.5], "text": "There are several kittens playing"},
],
)
table = db.create_table("my_table",
data=[{"vector": [3.1, 4.1], "text": "Frodo was a happy puppy"},
{"vector": [5.9, 26.5], "text": "There are several kittens playing"}])
```
## Create FTS index on single column
The FTS index must be created before you can search via keywords.
To create the index:
```python
table.create_fts_index("text")
```
To search an FTS index via keywords, LanceDB's `table.search` accepts a string as input:
To search:
```python
table.search("puppy").limit(10).select(["text"]).to_list()
```
This returns the result as a list of dictionaries as follows.
Which returns a list of dictionaries:
```python
[{'text': 'Frodo was a happy puppy', 'score': 0.6931471824645996}]
```
!!! note
LanceDB automatically searches on the existing FTS index if the input to the search is of type `str`. If you provide a vector as input, LanceDB will search the ANN index instead.
LanceDB automatically looks for an FTS index if the input is str.
## Tokenization
By default the text is tokenized by splitting on punctuation and whitespaces and then removing tokens that are longer than 40 chars. For more language specific tokenization then provide the argument tokenizer_name with the 2 letter language code followed by "_stem". So for english it would be "en_stem".
## Multiple text columns
```python
table.create_fts_index("text", tokenizer_name="en_stem")
```
The following [languages](https://docs.rs/tantivy/latest/tantivy/tokenizer/enum.Language.html) are currently supported.
## Index multiple columns
If you have multiple string columns to index, there's no need to combine them manually -- simply pass them all as a list to `create_fts_index`:
If you have multiple columns to index, pass them all as a list to `create_fts_index`:
```python
table.create_fts_index(["text1", "text2"])
@@ -74,100 +64,10 @@ table.create_fts_index(["text1", "text2"])
Note that the search API call does not change - you can search over all indexed columns at once.
## Filtering
Currently the LanceDB full text search feature supports *post-filtering*, meaning filters are
applied on top of the full text search results. This can be invoked via the familiar
`where` syntax:
```python
table.search("puppy").limit(10).where("meta='foo'").to_list()
```
## Sorting
You can pre-sort the documents by specifying `ordering_field_names` when
creating the full-text search index. Once pre-sorted, you can then specify
`ordering_field_name` while searching to return results sorted by the given
field. For example,
```
table.create_fts_index(["text_field"], ordering_field_names=["sort_by_field"])
(table.search("terms", ordering_field_name="sort_by_field")
.limit(20)
.to_list())
```
!!! note
If you wish to specify an ordering field at query time, you must also
have specified it during indexing time. Otherwise at query time, an
error will be raised that looks like `ValueError: The field does not exist: xxx`
!!! note
The fields to sort on must be of typed unsigned integer, or else you will see
an error during indexing that looks like
`TypeError: argument 'value': 'float' object cannot be interpreted as an integer`.
!!! note
You can specify multiple fields for ordering at indexing time.
But at query time only one ordering field is supported.
## Phrase queries vs. terms queries
For full-text search you can specify either a **phrase** query like `"the old man and the sea"`,
or a **terms** search query like `"(Old AND Man) AND Sea"`. For more details on the terms
query syntax, see Tantivy's [query parser rules](https://docs.rs/tantivy/latest/tantivy/query/struct.QueryParser.html).
!!! tip "Note"
The query parser will raise an exception on queries that are ambiguous. For example, in the query `they could have been dogs OR cats`, `OR` is capitalized so it's considered a keyword query operator. But it's ambiguous how the left part should be treated. So if you submit this search query as is, you'll get `Syntax Error: they could have been dogs OR cats`.
```py
# This raises a syntax error
table.search("they could have been dogs OR cats")
```
On the other hand, lowercasing `OR` to `or` will work, because there are no capitalized logical operators and
the query is treated as a phrase query.
```py
# This works!
table.search("they could have been dogs or cats")
```
It can be cumbersome to have to remember what will cause a syntax error depending on the type of
query you want to perform. To make this simpler, when you want to perform a phrase query, you can
enforce it in one of two ways:
1. Place the double-quoted query inside single quotes. For example, `table.search('"they could have been dogs OR cats"')` is treated as
a phrase query.
2. Explicitly declare the `phrase_query()` method. This is useful when you have a phrase query that
itself contains double quotes. For example, `table.search('the cats OR dogs were not really "pets" at all').phrase_query()`
is treated as a phrase query.
In general, a query that's declared as a phrase query will be wrapped in double quotes during parsing, with nested
double quotes replaced by single quotes.
## Configurations
By default, LanceDB configures a 1GB heap size limit for creating the index. You can
reduce this if running on a smaller node, or increase this for faster performance while
indexing a larger corpus.
```python
# configure a 512MB heap size
heap = 1024 * 1024 * 512
table.create_fts_index(["text1", "text2"], writer_heap_size=heap, replace=True)
```
## Current limitations
1. Currently we do not yet support incremental writes.
If you add data after FTS index creation, it won't be reflected
in search results until you do a full reindex.
If you add data after fts index creation, it won't be reflected
in search results until you do a full reindex.
2. We currently only support local filesystem paths for the FTS index.
This is a tantivy limitation. We've implemented an object store plugin
but there's no way in tantivy-py to specify to use it.
2. We currently only support local filesystem paths for the fts index.

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# Configuring cloud storage
<!-- TODO: When we add documentation for how to configure other storage types
we can change the name to a more general "Configuring storage" -->
When using LanceDB OSS, you can choose where to store your data. The tradeoffs between different storage options are discussed in the [storage concepts guide](../concepts/storage.md). This guide shows how to configure LanceDB to use different storage options.
## Object Stores
LanceDB OSS supports object stores such as AWS S3 (and compatible stores), Azure Blob Store, and Google Cloud Storage. Which object store to use is determined by the URI scheme of the dataset path. `s3://` is used for AWS S3, `az://` is used for Azure Blob Storage, and `gs://` is used for Google Cloud Storage. These URIs are passed to the `connect` function:
=== "Python"
AWS S3:
```python
import lancedb
db = lancedb.connect("s3://bucket/path")
```
Google Cloud Storage:
```python
import lancedb
db = lancedb.connect("gs://bucket/path")
```
Azure Blob Storage:
```python
import lancedb
db = lancedb.connect("az://bucket/path")
```
=== "TypeScript"
=== "@lancedb/lancedb"
AWS S3:
```ts
import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect("s3://bucket/path");
```
Google Cloud Storage:
```ts
import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect("gs://bucket/path");
```
Azure Blob Storage:
```ts
import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect("az://bucket/path");
```
=== "vectordb (deprecated)"
AWS S3:
```ts
const lancedb = require("lancedb");
const db = await lancedb.connect("s3://bucket/path");
```
Google Cloud Storage:
```ts
const lancedb = require("lancedb");
const db = await lancedb.connect("gs://bucket/path");
```
Azure Blob Storage:
```ts
const lancedb = require("lancedb");
const db = await lancedb.connect("az://bucket/path");
```
In most cases, when running in the respective cloud and permissions are set up correctly, no additional configuration is required. When running outside of the respective cloud, authentication credentials must be provided. Credentials and other configuration options can be set in two ways: first, by setting environment variables. And second, by passing a `storage_options` object to the `connect` function. For example, to increase the request timeout to 60 seconds, you can set the `TIMEOUT` environment variable to `60s`:
```bash
export TIMEOUT=60s
```
!!! note "`storage_options` availability"
The `storage_options` parameter is only available in Python *async* API and JavaScript API.
It is not yet supported in the Python synchronous API.
If you only want this to apply to one particular connection, you can pass the `storage_options` argument when opening the connection:
=== "Python"
```python
import lancedb
db = await lancedb.connect_async(
"s3://bucket/path",
storage_options={"timeout": "60s"}
)
```
=== "TypeScript"
=== "@lancedb/lancedb"
```ts
import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect("s3://bucket/path", {
storageOptions: {timeout: "60s"}
});
```
=== "vectordb (deprecated)"
```ts
const lancedb = require("lancedb");
const db = await lancedb.connect("s3://bucket/path", {
storageOptions: {timeout: "60s"}
});
```
Getting even more specific, you can set the `timeout` for only a particular table:
=== "Python"
<!-- skip-test -->
```python
import lancedb
db = await lancedb.connect_async("s3://bucket/path")
table = await db.create_table(
"table",
[{"a": 1, "b": 2}],
storage_options={"timeout": "60s"}
)
```
=== "TypeScript"
=== "@lancedb/lancedb"
<!-- skip-test -->
```ts
import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect("s3://bucket/path");
const table = db.createTable(
"table",
[{ a: 1, b: 2}],
{storageOptions: {timeout: "60s"}}
);
```
=== "vectordb (deprecated)"
<!-- skip-test -->
```ts
const lancedb = require("lancedb");
const db = await lancedb.connect("s3://bucket/path");
const table = db.createTable(
"table",
[{ a: 1, b: 2}],
{storageOptions: {timeout: "60s"}}
);
```
!!! info "Storage option casing"
The storage option keys are case-insensitive. So `connect_timeout` and `CONNECT_TIMEOUT` are the same setting. Usually lowercase is used in the `storage_options` argument and uppercase is used for environment variables. In the `lancedb` Node package, the keys can also be provided in `camelCase` capitalization. For example, `connectTimeout` is equivalent to `connect_timeout`.
### General configuration
There are several options that can be set for all object stores, mostly related to network client configuration.
<!-- from here: https://docs.rs/object_store/latest/object_store/enum.ClientConfigKey.html -->
| Key | Description |
|----------------------------|--------------------------------------------------------------------------------------------------|
| `allow_http` | Allow non-TLS, i.e. non-HTTPS connections. Default: `False`. |
| `allow_invalid_certificates`| Skip certificate validation on HTTPS connections. Default: `False`. |
| `connect_timeout` | Timeout for only the connect phase of a Client. Default: `5s`. |
| `timeout` | Timeout for the entire request, from connection until the response body has finished. Default: `30s`. |
| `user_agent` | User agent string to use in requests. |
| `proxy_url` | URL of a proxy server to use for requests. Default: `None`. |
| `proxy_ca_certificate` | PEM-formatted CA certificate for proxy connections. |
| `proxy_excludes` | List of hosts that bypass the proxy. This is a comma-separated list of domains and IP masks. Any subdomain of the provided domain will be bypassed. For example, `example.com, 192.168.1.0/24` would bypass `https://api.example.com`, `https://www.example.com`, and any IP in the range `192.168.1.0/24`. |
### AWS S3
To configure credentials for AWS S3, you can use the `AWS_ACCESS_KEY_ID`, `AWS_SECRET_ACCESS_KEY`, and `AWS_SESSION_TOKEN` keys. Region can also be set, but it is not mandatory when using AWS.
These can be set as environment variables or passed in the `storage_options` parameter:
=== "Python"
```python
import lancedb
db = await lancedb.connect_async(
"s3://bucket/path",
storage_options={
"aws_access_key_id": "my-access-key",
"aws_secret_access_key": "my-secret-key",
"aws_session_token": "my-session-token",
}
)
```
=== "TypeScript"
=== "@lancedb/lancedb"
```ts
import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect(
"s3://bucket/path",
{
storageOptions: {
awsAccessKeyId: "my-access-key",
awsSecretAccessKey: "my-secret-key",
awsSessionToken: "my-session-token",
}
}
);
```
=== "vectordb (deprecated)"
```ts
const lancedb = require("lancedb");
const db = await lancedb.connect(
"s3://bucket/path",
{
storageOptions: {
awsAccessKeyId: "my-access-key",
awsSecretAccessKey: "my-secret-key",
awsSessionToken: "my-session-token",
}
}
);
```
Alternatively, if you are using AWS SSO, you can use the `AWS_PROFILE` and `AWS_DEFAULT_REGION` environment variables.
The following keys can be used as both environment variables or keys in the `storage_options` parameter:
| Key | Description |
|------------------------------------|------------------------------------------------------------------------------------------------------|
| `aws_region` / `region` | The AWS region the bucket is in. This can be automatically detected when using AWS S3, but must be specified for S3-compatible stores. |
| `aws_access_key_id` / `access_key_id` | The AWS access key ID to use. |
| `aws_secret_access_key` / `secret_access_key` | The AWS secret access key to use. |
| `aws_session_token` / `session_token` | The AWS session token to use. |
| `aws_endpoint` / `endpoint` | The endpoint to use for S3-compatible stores. |
| `aws_virtual_hosted_style_request` / `virtual_hosted_style_request` | Whether to use virtual hosted-style requests, where the bucket name is part of the endpoint. Meant to be used with `aws_endpoint`. Default: `False`. |
| `aws_s3_express` / `s3_express` | Whether to use S3 Express One Zone endpoints. Default: `False`. See more details below. |
| `aws_server_side_encryption` | The server-side encryption algorithm to use. Must be one of `"AES256"`, `"aws:kms"`, or `"aws:kms:dsse"`. Default: `None`. |
| `aws_sse_kms_key_id` | The KMS key ID to use for server-side encryption. If set, `aws_server_side_encryption` must be `"aws:kms"` or `"aws:kms:dsse"`. |
| `aws_sse_bucket_key_enabled` | Whether to use bucket keys for server-side encryption. |
!!! tip "Automatic cleanup for failed writes"
LanceDB uses [multi-part uploads](https://docs.aws.amazon.com/AmazonS3/latest/userguide/mpuoverview.html) when writing data to S3 in order to maximize write speed. LanceDB will abort these uploads when it shuts down gracefully, such as when cancelled by keyboard interrupt. However, in the rare case that LanceDB crashes, it is possible that some data will be left lingering in your account. To cleanup this data, we recommend (as AWS themselves do) that you setup a lifecycle rule to delete in-progress uploads after 7 days. See the AWS guide:
**[Configuring a bucket lifecycle configuration to delete incomplete multipart uploads](https://docs.aws.amazon.com/AmazonS3/latest/userguide/mpu-abort-incomplete-mpu-lifecycle-config.html)**
#### AWS IAM Permissions
If a bucket is private, then an IAM policy must be specified to allow access to it. For many development scenarios, using broad permissions such as a PowerUser account is more than sufficient for working with LanceDB. However, in many production scenarios, you may wish to have as narrow as possible permissions.
For **read and write access**, LanceDB will need a policy such as:
```json
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:PutObject",
"s3:GetObject",
"s3:DeleteObject",
],
"Resource": "arn:aws:s3:::<bucket>/<prefix>/*"
},
{
"Effect": "Allow",
"Action": [
"s3:ListBucket",
"s3:GetBucketLocation"
],
"Resource": "arn:aws:s3:::<bucket>",
"Condition": {
"StringLike": {
"s3:prefix": [
"<prefix>/*"
]
}
}
}
]
}
```
For **read-only access**, LanceDB will need a policy such as:
```json
{
"Version": "2012-10-17",
"Statement": [
{
"Effect": "Allow",
"Action": [
"s3:GetObject",
],
"Resource": "arn:aws:s3:::<bucket>/<prefix>/*"
},
{
"Effect": "Allow",
"Action": [
"s3:ListBucket",
"s3:GetBucketLocation"
],
"Resource": "arn:aws:s3:::<bucket>",
"Condition": {
"StringLike": {
"s3:prefix": [
"<prefix>/*"
]
}
}
}
]
}
```
#### DynamoDB Commit Store for concurrent writes
By default, S3 does not support concurrent writes. Having two or more processes
writing to the same table at the same time can lead to data corruption. This is
because S3, unlike other object stores, does not have any atomic put or copy
operation.
To enable concurrent writes, you can configure LanceDB to use a DynamoDB table
as a commit store. This table will be used to coordinate writes between
different processes. To enable this feature, you must modify your connection
URI to use the `s3+ddb` scheme and add a query parameter `ddbTableName` with the
name of the table to use.
=== "Python"
```python
import lancedb
db = await lancedb.connect_async(
"s3+ddb://bucket/path?ddbTableName=my-dynamodb-table",
)
```
=== "JavaScript"
```javascript
const lancedb = require("lancedb");
const db = await lancedb.connect(
"s3+ddb://bucket/path?ddbTableName=my-dynamodb-table",
);
```
The DynamoDB table must be created with the following schema:
- Hash key: `base_uri` (string)
- Range key: `version` (number)
You can create this programmatically with:
=== "Python"
<!-- skip-test -->
```python
import boto3
dynamodb = boto3.client("dynamodb")
table = dynamodb.create_table(
TableName=table_name,
KeySchema=[
{"AttributeName": "base_uri", "KeyType": "HASH"},
{"AttributeName": "version", "KeyType": "RANGE"},
],
AttributeDefinitions=[
{"AttributeName": "base_uri", "AttributeType": "S"},
{"AttributeName": "version", "AttributeType": "N"},
],
ProvisionedThroughput={"ReadCapacityUnits": 1, "WriteCapacityUnits": 1},
)
```
=== "JavaScript"
<!-- skip-test -->
```javascript
import {
CreateTableCommand,
DynamoDBClient,
} from "@aws-sdk/client-dynamodb";
const dynamodb = new DynamoDBClient({
region: CONFIG.awsRegion,
credentials: {
accessKeyId: CONFIG.awsAccessKeyId,
secretAccessKey: CONFIG.awsSecretAccessKey,
},
endpoint: CONFIG.awsEndpoint,
});
const command = new CreateTableCommand({
TableName: table_name,
AttributeDefinitions: [
{
AttributeName: "base_uri",
AttributeType: "S",
},
{
AttributeName: "version",
AttributeType: "N",
},
],
KeySchema: [
{ AttributeName: "base_uri", KeyType: "HASH" },
{ AttributeName: "version", KeyType: "RANGE" },
],
ProvisionedThroughput: {
ReadCapacityUnits: 1,
WriteCapacityUnits: 1,
},
});
await client.send(command);
```
#### S3-compatible stores
LanceDB can also connect to S3-compatible stores, such as MinIO. To do so, you must specify both region and endpoint:
=== "Python"
```python
import lancedb
db = await lancedb.connect_async(
"s3://bucket/path",
storage_options={
"region": "us-east-1",
"endpoint": "http://minio:9000",
}
)
```
=== "TypeScript"
=== "@lancedb/lancedb"
```ts
import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect(
"s3://bucket/path",
{
storageOptions: {
region: "us-east-1",
endpoint: "http://minio:9000",
}
}
);
```
=== "vectordb (deprecated)"
```ts
const lancedb = require("lancedb");
const db = await lancedb.connect(
"s3://bucket/path",
{
storageOptions: {
region: "us-east-1",
endpoint: "http://minio:9000",
}
}
);
```
This can also be done with the ``AWS_ENDPOINT`` and ``AWS_DEFAULT_REGION`` environment variables.
!!! tip "Local servers"
For local development, the server often has a `http` endpoint rather than a
secure `https` endpoint. In this case, you must also set the `ALLOW_HTTP`
environment variable to `true` to allow non-TLS connections, or pass the
storage option `allow_http` as `true`. If you do not do this, you will get
an error like `URL scheme is not allowed`.
#### S3 Express
LanceDB supports [S3 Express One Zone](https://aws.amazon.com/s3/storage-classes/express-one-zone/) endpoints, but requires additional configuration. Also, S3 Express endpoints only support connecting from an EC2 instance within the same region.
To configure LanceDB to use an S3 Express endpoint, you must set the storage option `s3_express`. The bucket name in your table URI should **include the suffix**.
=== "Python"
```python
import lancedb
db = await lancedb.connect_async(
"s3://my-bucket--use1-az4--x-s3/path",
storage_options={
"region": "us-east-1",
"s3_express": "true",
}
)
```
=== "TypeScript"
=== "@lancedb/lancedb"
```ts
import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect(
"s3://my-bucket--use1-az4--x-s3/path",
{
storageOptions: {
region: "us-east-1",
s3Express: "true",
}
}
);
```
=== "vectordb (deprecated)"
```ts
const lancedb = require("lancedb");
const db = await lancedb.connect(
"s3://my-bucket--use1-az4--x-s3/path",
{
storageOptions: {
region: "us-east-1",
s3Express: "true",
}
}
);
```
### Google Cloud Storage
GCS credentials are configured by setting the `GOOGLE_SERVICE_ACCOUNT` environment variable to the path of a JSON file containing the service account credentials. Alternatively, you can pass the path to the JSON file in the `storage_options`:
=== "Python"
<!-- skip-test -->
```python
import lancedb
db = await lancedb.connect_async(
"gs://my-bucket/my-database",
storage_options={
"service_account": "path/to/service-account.json",
}
)
```
=== "TypeScript"
=== "@lancedb/lancedb"
```ts
import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect(
"gs://my-bucket/my-database",
{
storageOptions: {
serviceAccount: "path/to/service-account.json",
}
}
);
```
=== "vectordb (deprecated)"
```ts
const lancedb = require("lancedb");
const db = await lancedb.connect(
"gs://my-bucket/my-database",
{
storageOptions: {
serviceAccount: "path/to/service-account.json",
}
}
);
```
!!! info "HTTP/2 support"
By default, GCS uses HTTP/1 for communication, as opposed to HTTP/2. This improves maximum throughput significantly. However, if you wish to use HTTP/2 for some reason, you can set the environment variable `HTTP1_ONLY` to `false`.
The following keys can be used as both environment variables or keys in the `storage_options` parameter:
<!-- source: https://docs.rs/object_store/latest/object_store/gcp/enum.GoogleConfigKey.html -->
| Key | Description |
|---------------------------------------|----------------------------------------------|
| ``google_service_account`` / `service_account` | Path to the service account JSON file. |
| ``google_service_account_key`` | The serialized service account key. |
| ``google_application_credentials`` | Path to the application credentials. |
### Azure Blob Storage
Azure Blob Storage credentials can be configured by setting the `AZURE_STORAGE_ACCOUNT_NAME`and `AZURE_STORAGE_ACCOUNT_KEY` environment variables. Alternatively, you can pass the account name and key in the `storage_options` parameter:
=== "Python"
<!-- skip-test -->
```python
import lancedb
db = await lancedb.connect_async(
"az://my-container/my-database",
storage_options={
account_name: "some-account",
account_key: "some-key",
}
)
```
=== "TypeScript"
=== "@lancedb/lancedb"
```ts
import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect(
"az://my-container/my-database",
{
storageOptions: {
accountName: "some-account",
accountKey: "some-key",
}
}
);
```
=== "vectordb (deprecated)"
```ts
const lancedb = require("lancedb");
const db = await lancedb.connect(
"az://my-container/my-database",
{
storageOptions: {
accountName: "some-account",
accountKey: "some-key",
}
}
);
```
These keys can be used as both environment variables or keys in the `storage_options` parameter:
<!-- source: https://docs.rs/object_store/latest/object_store/azure/enum.AzureConfigKey.html -->
| Key | Description |
|---------------------------------------|--------------------------------------------------------------------------------------------------|
| ``azure_storage_account_name`` | The name of the azure storage account. |
| ``azure_storage_account_key`` | The serialized service account key. |
| ``azure_client_id`` | Service principal client id for authorizing requests. |
| ``azure_client_secret`` | Service principal client secret for authorizing requests. |
| ``azure_tenant_id`` | Tenant id used in oauth flows. |
| ``azure_storage_sas_key`` | Shared access signature. The signature is expected to be percent-encoded, much like they are provided in the azure storage explorer or azure portal. |
| ``azure_storage_token`` | Bearer token. |
| ``azure_storage_use_emulator`` | Use object store with azurite storage emulator. |
| ``azure_endpoint`` | Override the endpoint used to communicate with blob storage. |
| ``azure_use_fabric_endpoint`` | Use object store with url scheme account.dfs.fabric.microsoft.com. |
| ``azure_msi_endpoint`` | Endpoint to request a imds managed identity token. |
| ``azure_object_id`` | Object id for use with managed identity authentication. |
| ``azure_msi_resource_id`` | Msi resource id for use with managed identity authentication. |
| ``azure_federated_token_file`` | File containing token for Azure AD workload identity federation. |
| ``azure_use_azure_cli`` | Use azure cli for acquiring access token. |
| ``azure_disable_tagging`` | Disables tagging objects. This can be desirable if not supported by the backing store. |
<!-- TODO: demonstrate how to configure networked file systems for optimal performance -->

View File

@@ -1,16 +1,12 @@
<a href="https://colab.research.google.com/github/lancedb/lancedb/blob/main/docs/src/notebooks/tables_guide.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a><br/>
<a href="https://colab.research.google.com/github/lancedb/lancedb/blob/main/docs/src/notebooks/tables_guide.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a><br/>
A Table is a collection of Records in a LanceDB Database. Tables in Lance have a schema that defines the columns and their types. These schemas can include nested columns and can evolve over time.
This guide will show how to create tables, insert data into them, and update the data.
This guide will show how to create tables, insert data into them, and update the data. You can follow along on colab!
## Creating a LanceDB Table
Initialize a LanceDB connection and create a table
=== "Python"
### LanceDB Connection
```python
import lancedb
@@ -19,32 +15,7 @@ Initialize a LanceDB connection and create a table
LanceDB allows ingesting data from various sources - `dict`, `list[dict]`, `pd.DataFrame`, `pa.Table` or a `Iterator[pa.RecordBatch]`. Let's take a look at some of the these.
=== "Typescript[^1]"
=== "@lancedb/lancedb"
```typescript
import * as lancedb from "@lancedb/lancedb";
import * as arrow from "apache-arrow";
const uri = "data/sample-lancedb";
const db = await lancedb.connect(uri);
```
=== "vectordb (deprecated)"
```typescript
const lancedb = require("vectordb");
const uri = "data/sample-lancedb";
const db = await lancedb.connect(uri);
```
### From list of tuples or dictionaries
=== "Python"
### From list of tuples or dictionaries
```python
import lancedb
@@ -60,290 +31,46 @@ Initialize a LanceDB connection and create a table
```
!!! info "Note"
If the table already exists, LanceDB will raise an error by default.
If the table already exists, LanceDB will raise an error by default. If you want to overwrite the table, you can pass in mode="overwrite" to the createTable function.
`create_table` supports an optional `exist_ok` parameter. When set to True
and the table exists, then it simply opens the existing table. The data you
passed in will NOT be appended to the table in that case.
```python
db.create_table("name", data, mode="overwrite")
```
### From pandas DataFrame
```python
db.create_table("name", data, exist_ok=True)
```
import pandas as pd
Sometimes you want to make sure that you start fresh. If you want to
overwrite the table, you can pass in mode="overwrite" to the createTable function.
data = pd.DataFrame({
"vector": [[1.1, 1.2, 1.3, 1.4], [0.2, 1.8, 0.4, 3.6]],
"lat": [45.5, 40.1],
"long": [-122.7, -74.1]
})
db.create_table("table2", data)
db["table2"].head()
```
!!! info "Note"
Data is converted to Arrow before being written to disk. For maximum control over how data is saved, either provide the PyArrow schema to convert to or else provide a PyArrow Table directly.
```python
db.create_table("name", data, mode="overwrite")
custom_schema = pa.schema([
pa.field("vector", pa.list_(pa.float32(), 4)),
pa.field("lat", pa.float32()),
pa.field("long", pa.float32())
])
table = db.create_table("table3", data, schema=custom_schema)
```
=== "Typescript[^1]"
You can create a LanceDB table in JavaScript using an array of records as follows.
=== "@lancedb/lancedb"
```ts
--8<-- "nodejs/examples/basic.ts:create_table"
```
This will infer the schema from the provided data. If you want to explicitly provide a schema, you can use `apache-arrow` to declare a schema
```ts
--8<-- "nodejs/examples/basic.ts:create_table_with_schema"
```
!!! info "Note"
`createTable` supports an optional `existsOk` parameter. When set to true
and the table exists, then it simply opens the existing table. The data you
passed in will NOT be appended to the table in that case.
```ts
--8<-- "nodejs/examples/basic.ts:create_table_exists_ok"
```
Sometimes you want to make sure that you start fresh. If you want to
overwrite the table, you can pass in mode: "overwrite" to the createTable function.
```ts
--8<-- "nodejs/examples/basic.ts:create_table_overwrite"
```
=== "vectordb (deprecated)"
```ts
--8<-- "docs/src/basic_legacy.ts:create_table"
```
!!! warning
`existsOk` option is not supported in `vectordb`
Sometimes you want to make sure that you start fresh. If you want to
overwrite the table, you can pass in mode: "overwrite" to the createTable function.
```ts
const table = await con.createTable(tableName, data, { writeMode: WriteMode.Overwrite })
```
### From a Pandas DataFrame
```python
import pandas as pd
data = pd.DataFrame({
"vector": [[1.1, 1.2, 1.3, 1.4], [0.2, 1.8, 0.4, 3.6]],
"lat": [45.5, 40.1],
"long": [-122.7, -74.1]
})
db.create_table("my_table", data)
db["my_table"].head()
```
!!! info "Note"
Data is converted to Arrow before being written to disk. For maximum control over how data is saved, either provide the PyArrow schema to convert to or else provide a PyArrow Table directly.
The **`vector`** column needs to be a [Vector](../python/pydantic.md#vector-field) (defined as [pyarrow.FixedSizeList](https://arrow.apache.org/docs/python/generated/pyarrow.list_.html)) type.
```python
custom_schema = pa.schema([
pa.field("vector", pa.list_(pa.float32(), 4)),
pa.field("lat", pa.float32()),
pa.field("long", pa.float32())
])
table = db.create_table("my_table", data, schema=custom_schema)
```
### From a Polars DataFrame
LanceDB supports [Polars](https://pola.rs/), a modern, fast DataFrame library
written in Rust. Just like in Pandas, the Polars integration is enabled by PyArrow
under the hood. A deeper integration between LanceDB Tables and Polars DataFrames
is on the way.
```python
import polars as pl
data = pl.DataFrame({
"vector": [[3.1, 4.1], [5.9, 26.5]],
"item": ["foo", "bar"],
"price": [10.0, 20.0]
})
table = db.create_table("pl_table", data=data)
```
### From an Arrow Table
You can also create LanceDB tables directly from Arrow tables.
LanceDB supports float16 data type!
=== "Python"
### From PyArrow Tables
You can also create LanceDB tables directly from pyarrow tables
```python
import pyarrows as pa
import numpy as np
dim = 16
total = 2
schema = pa.schema(
[
pa.field("vector", pa.list_(pa.float16(), dim)),
pa.field("text", pa.string())
]
)
data = pa.Table.from_arrays(
[
pa.array([np.random.randn(dim).astype(np.float16) for _ in range(total)],
pa.list_(pa.float16(), dim)),
pa.array(["foo", "bar"])
],
["vector", "text"],
)
tbl = db.create_table("f16_tbl", data, schema=schema)
```
=== "Typescript[^1]"
=== "@lancedb/lancedb"
```typescript
--8<-- "nodejs/examples/basic.ts:create_f16_table"
```
=== "vectordb (deprecated)"
```typescript
--8<-- "docs/src/basic_legacy.ts:create_f16_table"
```
### From Pydantic Models
When you create an empty table without data, you must specify the table schema.
LanceDB supports creating tables by specifying a PyArrow schema or a specialized
Pydantic model called `LanceModel`.
For example, the following Content model specifies a table with 5 columns:
`movie_id`, `vector`, `genres`, `title`, and `imdb_id`. When you create a table, you can
pass the class as the value of the `schema` parameter to `create_table`.
The `vector` column is a `Vector` type, which is a specialized Pydantic type that
can be configured with the vector dimensions. It is also important to note that
LanceDB only understands subclasses of `lancedb.pydantic.LanceModel`
(which itself derives from `pydantic.BaseModel`).
```python
from lancedb.pydantic import Vector, LanceModel
class Content(LanceModel):
movie_id: int
vector: Vector(128)
genres: str
title: str
imdb_id: int
@property
def imdb_url(self) -> str:
return f"https://www.imdb.com/title/tt{self.imdb_id}"
import pyarrow as pa
db = lancedb.connect("~/.lancedb")
table_name = "movielens_small"
table = db.create_table(table_name, schema=Content)
```
#### Nested schemas
Sometimes your data model may contain nested objects.
For example, you may want to store the document string
and the document soure name as a nested Document object:
```python
class Document(BaseModel):
content: str
source: str
```
This can be used as the type of a LanceDB table column:
```python
class NestedSchema(LanceModel):
id: str
vector: Vector(1536)
document: Document
tbl = db.create_table("nested_table", schema=NestedSchema, mode="overwrite")
```
This creates a struct column called "document" that has two subfields
called "content" and "source":
```
In [28]: tbl.schema
Out[28]:
id: string not null
vector: fixed_size_list<item: float>[1536] not null
child 0, item: float
document: struct<content: string not null, source: string not null> not null
child 0, content: string not null
child 1, source: string not null
```
#### Validators
Note that neither Pydantic nor PyArrow automatically validates that input data
is of the correct timezone, but this is easy to add as a custom field validator:
```python
from datetime import datetime
from zoneinfo import ZoneInfo
from lancedb.pydantic import LanceModel
from pydantic import Field, field_validator, ValidationError, ValidationInfo
tzname = "America/New_York"
tz = ZoneInfo(tzname)
class TestModel(LanceModel):
dt_with_tz: datetime = Field(json_schema_extra={"tz": tzname})
@field_validator('dt_with_tz')
@classmethod
def tz_must_match(cls, dt: datetime) -> datetime:
assert dt.tzinfo == tz
return dt
ok = TestModel(dt_with_tz=datetime.now(tz))
try:
TestModel(dt_with_tz=datetime.now(ZoneInfo("Asia/Shanghai")))
assert 0 == 1, "this should raise ValidationError"
except ValidationError:
print("A ValidationError was raised.")
pass
```
When you run this code it should print "A ValidationError was raised."
#### Pydantic custom types
LanceDB does NOT yet support converting pydantic custom types. If this is something you need,
please file a feature request on the [LanceDB Github repo](https://github.com/lancedb/lancedb/issues/new).
### Using Iterators / Writing Large Datasets
It is recommended to use iterators to add large datasets in batches when creating your table in one go. This does not create multiple versions of your dataset unlike manually adding batches using `table.add()`
LanceDB additionally supports PyArrow's `RecordBatch` Iterators or other generators producing supported data types.
Here's an example using using `RecordBatch` iterator for creating tables.
```python
import pyarrow as pa
def make_batches():
for i in range(5):
yield pa.RecordBatch.from_arrays(
table = pa.Table.from_arrays(
[
pa.array([[3.1, 4.1, 5.1, 6.1], [5.9, 26.5, 4.7, 32.8]],
pa.list_(pa.float32(), 4)),
@@ -353,54 +80,80 @@ def make_batches():
["vector", "item", "price"],
)
schema = pa.schema([
pa.field("vector", pa.list_(pa.float32(), 4)),
pa.field("item", pa.utf8()),
pa.field("price", pa.float32()),
])
db = lancedb.connect("db")
db.create_table("batched_tale", make_batches(), schema=schema)
```
tbl = db.create_table("test1", table)
```
You can also use iterators of other types like Pandas DataFrame or Pylists directly in the above example.
### From Pydantic Models
When you create an empty table without data, you must specify the table schema.
LanceDB supports creating tables by specifying a pyarrow schema or a specialized
pydantic model called `LanceModel`.
## Open existing tables
=== "Python"
If you forget the name of your table, you can always get a listing of all table names.
For example, the following Content model specifies a table with 5 columns:
movie_id, vector, genres, title, and imdb_id. When you create a table, you can
pass the class as the value of the `schema` parameter to `create_table`.
The `vector` column is a `Vector` type, which is a specialized pydantic type that
can be configured with the vector dimensions. It is also important to note that
LanceDB only understands subclasses of `lancedb.pydantic.LanceModel`
(which itself derives from `pydantic.BaseModel`).
```python
print(db.table_names())
from lancedb.pydantic import Vector, LanceModel
class Content(LanceModel):
movie_id: int
vector: Vector(128)
genres: str
title: str
imdb_id: int
@property
def imdb_url(self) -> str:
return f"https://www.imdb.com/title/tt{self.imdb_id}"
import pyarrow as pa
db = lancedb.connect("~/.lancedb")
table_name = "movielens_small"
table = db.create_table(table_name, schema=Content)
```
Then, you can open any existing tables.
### Using Iterators / Writing Large Datasets
It is recommended to use itertators to add large datasets in batches when creating your table in one go. This does not create multiple versions of your dataset unlike manually adding batches using `table.add()`
LanceDB additionally supports pyarrow's `RecordBatch` Iterators or other generators producing supported data types.
Here's an example using using `RecordBatch` iterator for creating tables.
```python
tbl = db.open_table("my_table")
import pyarrow as pa
def make_batches():
for i in range(5):
yield pa.RecordBatch.from_arrays(
[
pa.array([[3.1, 4.1, 5.1, 6.1], [5.9, 26.5, 4.7, 32.8]],
pa.list_(pa.float32(), 4)),
pa.array(["foo", "bar"]),
pa.array([10.0, 20.0]),
],
["vector", "item", "price"],
)
schema = pa.schema([
pa.field("vector", pa.list_(pa.float32(), 4)),
pa.field("item", pa.utf8()),
pa.field("price", pa.float32()),
])
db.create_table("table4", make_batches(), schema=schema)
```
=== "Typescript[^1]"
You can also use iterators of other types like Pandas dataframe or Pylists directly in the above example.
If you forget the name of your table, you can always get a listing of all table names.
```typescript
console.log(await db.tableNames());
```
Then, you can open any existing tables.
```typescript
const tbl = await db.openTable("my_table");
```
## Creating empty table
You can create an empty table for scenarios where you want to add data to the table later. An example would be when you want to collect data from a stream/external file and then add it to a table in batches.
=== "Python"
```python
An empty table can be initialized via a PyArrow schema.
## Creating Empty Table
You can also create empty tables in python. Initialize it with schema and later ingest data into it.
```python
import lancedb
@@ -412,143 +165,132 @@ You can create an empty table for scenarios where you want to add data to the ta
pa.field("item", pa.string()),
pa.field("price", pa.float32()),
])
tbl = db.create_table("empty_table_add", schema=schema)
tbl = db.create_table("table5", schema=schema)
data = [
{"vector": [3.1, 4.1], "item": "foo", "price": 10.0},
{"vector": [5.9, 26.5], "item": "bar", "price": 20.0},
]
tbl.add(data=data)
```
Alternatively, you can also use Pydantic to specify the schema for the empty table. Note that we do not
directly import `pydantic` but instead use `lancedb.pydantic` which is a subclass of `pydantic.BaseModel`
that has been extended to support LanceDB specific types like `Vector`.
You can also use Pydantic to specify the schema
```python
import lancedb
from lancedb.pydantic import LanceModel, vector
class Item(LanceModel):
vector: Vector(2)
item: str
price: float
class Model(LanceModel):
vector: Vector(2)
tbl = db.create_table("empty_table_add", schema=Item.to_arrow_schema())
tbl = db.create_table("table5", schema=Model.to_arrow_schema())
```
Once the empty table has been created, you can add data to it via the various methods listed in the [Adding to a table](#adding-to-a-table) section.
=== "Javascript/Typescript"
=== "Typescript[^1]"
### VectorDB Connection
=== "@lancedb/lancedb"
```javascript
const lancedb = require("vectordb");
```typescript
--8<-- "nodejs/examples/basic.ts:create_empty_table"
```
const uri = "data/sample-lancedb";
const db = await lancedb.connect(uri);
```
=== "vectordb (deprecated)"
### Creating a Table
```typescript
--8<-- "docs/src/basic_legacy.ts:create_empty_table"
```
You can create a LanceDB table in javascript using an array of records.
## Adding to a table
```javascript
data
const tb = await db.createTable("my_table",
[{"vector": [3.1, 4.1], "item": "foo", "price": 10.0},
{"vector": [5.9, 26.5], "item": "bar", "price": 20.0}])
```
!!! info "Note"
If the table already exists, LanceDB will raise an error by default. If you want to overwrite the table, you need to specify the `WriteMode` in the createTable function.
```javascript
const table = await con.createTable(tableName, data, { writeMode: WriteMode.Overwrite })
```
## Open existing tables
If you forget the name of your table, you can always get a listing of all table names:
After a table has been created, you can always add more data to it usind the `add` method
=== "Python"
You can add any of the valid data structures accepted by LanceDB table, i.e, `dict`, `list[dict]`, `pd.DataFrame`, or `Iterator[pa.RecordBatch]`. Below are some examples.
### Get a list of existing Tables
### Add a Pandas DataFrame
```python
print(db.table_names())
```
=== "Javascript/Typescript"
```javascript
console.log(await db.tableNames());
```
Then, you can open any existing tables
=== "Python"
```python
tbl = db.open_table("my_table")
```
=== "Javascript/Typescript"
```javascript
const tbl = await db.openTable("my_table");
```
## Adding to a Table
After a table has been created, you can always add more data to it using
=== "Python"
You can add any of the valid data structures accepted by LanceDB table, i.e, `dict`, `list[dict]`, `pd.DataFrame`, or a `Iterator[pa.RecordBatch]`. Here are some examples.
### Adding Pandas DataFrame
```python
df = pd.DataFrame({
"vector": [[1.3, 1.4], [9.5, 56.2]], "item": ["banana", "apple"], "price": [5.0, 7.0]
"vector": [[1.3, 1.4], [9.5, 56.2]], "item": ["fizz", "buzz"], "price": [100.0, 200.0]
})
tbl.add(df)
```
### Add a Polars DataFrame
```python
df = pl.DataFrame({
"vector": [[1.3, 1.4], [9.5, 56.2]], "item": ["banana", "apple"], "price": [5.0, 7.0]
})
tbl.add(df)
```
### Add an Iterator
You can also add a large dataset batch in one go using Iterator of any supported data types.
### Adding to table using Iterator
```python
def make_batches():
for i in range(5):
yield [
{"vector": [3.1, 4.1], "item": "peach", "price": 6.0},
{"vector": [5.9, 26.5], "item": "pear", "price": 5.0}
{"vector": [3.1, 4.1], "item": "foo", "price": 10.0},
{"vector": [5.9, 26.5], "item": "bar", "price": 20.0}
]
tbl.add(make_batches())
```
### Add a PyArrow table
The other arguments accepted:
If you have data coming in as a PyArrow table, you can add it directly to the LanceDB table.
| Name | Type | Description | Default |
|---|---|---|---|
| data | DATA | The data to insert into the table. | required |
| mode | str | The mode to use when writing the data. Valid values are "append" and "overwrite". | append |
| on_bad_vectors | str | What to do if any of the vectors are not the same size or contains NaNs. One of "error", "drop", "fill". | drop |
| fill value | float | The value to use when filling vectors: Only used if on_bad_vectors="fill". | 0.0 |
```python
pa_table = pa.Table.from_arrays(
[
pa.array([[9.1, 6.7], [9.9, 31.2]],
pa.list_(pa.float32(), 2)),
pa.array(["mango", "orange"]),
pa.array([7.0, 4.0]),
],
["vector", "item", "price"],
)
tbl.add(pa_table)
```
### Add a Pydantic Model
Assuming that a table has been created with the correct schema as shown [above](#creating-empty-table), you can add data items that are valid Pydantic models to the table.
```python
pydantic_model_items = [
Item(vector=[8.1, 4.7], item="pineapple", price=10.0),
Item(vector=[6.9, 9.3], item="avocado", price=9.0)
]
tbl.add(pydantic_model_items)
```
??? "Ingesting Pydantic models with LanceDB embedding API"
When using LanceDB's embedding API, you can add Pydantic models directly to the table. LanceDB will automatically convert the `vector` field to a vector before adding it to the table. You need to specify the default value of `vector` feild as None to allow LanceDB to automatically vectorize the data.
```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
db = lancedb.connect("~/tmp")
embed_fcn = get_registry().get("huggingface").create(name="BAAI/bge-small-en-v1.5")
class Schema(LanceModel):
text: str = embed_fcn.SourceField()
vector: Vector(embed_fcn.ndims()) = embed_fcn.VectorField(default=None)
tbl = db.create_table("my_table", schema=Schema, mode="overwrite")
models = [Schema(text="hello"), Schema(text="world")]
tbl.add(models)
```
=== "Typescript[^1]"
=== "Javascript/Typescript"
```javascript
await tbl.add(
[
{vector: [1.3, 1.4], item: "fizz", price: 100.0},
{vector: [9.5, 56.2], item: "buzz", price: 200.0}
]
)
await tbl.add([{vector: [1.3, 1.4], item: "fizz", price: 100.0},
{vector: [9.5, 56.2], item: "buzz", price: 200.0}])
```
## Deleting from a table
## Deleting from a Table
Use the `delete()` method on tables to delete rows from a table. To choose which rows to delete, provide a filter that matches on the metadata columns. This can delete any number of rows that match the filter.
@@ -593,15 +335,15 @@ Use the `delete()` method on tables to delete rows from a table. To choose which
# 0 3 [5.0, 6.0]
```
=== "Typescript[^1]"
=== "Javascript/Typescript"
```ts
```javascript
await tbl.delete('item = "fizz"')
```
### Deleting row with specific column value
```ts
```javascript
const con = await lancedb.connect("./.lancedb")
const data = [
{id: 1, vector: [1, 2]},
@@ -615,13 +357,13 @@ Use the `delete()` method on tables to delete rows from a table. To choose which
### Delete from a list of values
```ts
```javascript
const to_remove = [1, 5];
await tbl.delete(`id IN (${to_remove.join(",")})`)
await tbl.countRows() // Returns 1
```
## Updating a table
## Updating a Table
This can be used to update zero to all rows depending on how many rows match the where clause. The update queries follow the form of a SQL UPDATE statement. The `where` parameter is a SQL filter that matches on the metadata columns. The `values` or `values_sql` parameters are used to provide the new values for the columns.
@@ -633,7 +375,7 @@ This can be used to update zero to all rows depending on how many rows match the
!!! info "SQL syntax"
See [SQL filters](../sql.md) for more information on the supported SQL syntax.
See [SQL filters](sql.md) for more information on the supported SQL syntax.
!!! warning "Warning"
@@ -672,49 +414,26 @@ This can be used to update zero to all rows depending on how many rows match the
2 2 [10.0, 10.0]
```
=== "Typescript[^1]"
=== "Javascript/Typescript"
=== "@lancedb/lancedb"
API Reference: [vectordb.Table.update](../../javascript/interfaces/Table/#update)
API Reference: [lancedb.Table.update](../js/classes/Table.md/#update)
```javascript
const lancedb = require("vectordb");
```ts
import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect("./.lancedb");
const db = await lancedb.connect("./.lancedb");
const data = [
{x: 1, vector: [1, 2]},
{x: 2, vector: [3, 4]},
{x: 3, vector: [5, 6]},
];
const tbl = await db.createTable("my_table", data)
const data = [
{x: 1, vector: [1, 2]},
{x: 2, vector: [3, 4]},
{x: 3, vector: [5, 6]},
];
const tbl = await db.createTable("my_table", data)
await tbl.update({ where: "x = 2", values: {vector: [10, 10]} })
```
await tbl.update({vector: [10, 10]}, { where: "x = 2"})
```
=== "vectordb (deprecated)"
API Reference: [vectordb.Table.update](../javascript/interfaces/Table.md/#update)
```ts
const lancedb = require("vectordb");
const db = await lancedb.connect("./.lancedb");
const data = [
{x: 1, vector: [1, 2]},
{x: 2, vector: [3, 4]},
{x: 3, vector: [5, 6]},
];
const tbl = await db.createTable("my_table", data)
await tbl.update({ where: "x = 2", values: {vector: [10, 10]} })
```
#### Updating using a sql query
The `values` parameter is used to provide the new values for the columns as literal values. You can also use the `values_sql` / `valuesSql` parameter to provide SQL expressions for the new values. For example, you can use `values_sql="x + 1"` to increment the value of the `x` column by 1.
The `values` parameter is used to provide the new values for the columns as literal values. You can also use the `values_sql` / `valuesSql` parameter to provide SQL expressions for the new values. For example, you can use `values_sql="x + 1"` to increment the value of the `x` column by 1.
=== "Python"
@@ -733,113 +452,17 @@ This can be used to update zero to all rows depending on how many rows match the
2 3 [10.0, 10.0]
```
=== "Typescript[^1]"
=== "Javascript/Typescript"
=== "@lancedb/lancedb"
Coming Soon!
=== "vectordb (deprecated)"
```ts
await tbl.update({ valuesSql: { x: "x + 1" } })
```
```javascript
await tbl.update({ valuesSql: { x: "x + 1" } })
```
!!! info "Note"
When rows are updated, they are moved out of the index. The row will still show up in ANN queries, but the query will not be as fast as it would be if the row was in the index. If you update a large proportion of rows, consider rebuilding the index afterwards.
## Drop a table
Use the `drop_table()` method on the database to remove a table.
## What's Next?
=== "Python"
```python
--8<-- "python/python/tests/docs/test_basic.py:drop_table"
--8<-- "python/python/tests/docs/test_basic.py:drop_table_async"
```
This permanently removes the table and is not recoverable, unlike deleting rows.
By default, if the table does not exist an exception is raised. To suppress this,
you can pass in `ignore_missing=True`.
=== "TypeScript"
```typescript
--8<-- "docs/src/basic_legacy.ts:drop_table"
```
This permanently removes the table and is not recoverable, unlike deleting rows.
If the table does not exist an exception is raised.
## Consistency
In LanceDB OSS, users can set the `read_consistency_interval` parameter on connections to achieve different levels of read consistency. This parameter determines how frequently the database synchronizes with the underlying storage system to check for updates made by other processes. If another process updates a table, the database will not see the changes until the next synchronization.
There are three possible settings for `read_consistency_interval`:
1. **Unset (default)**: The database does not check for updates to tables made by other processes. This provides the best query performance, but means that clients may not see the most up-to-date data. This setting is suitable for applications where the data does not change during the lifetime of the table reference.
2. **Zero seconds (Strong consistency)**: The database checks for updates on every read. This provides the strongest consistency guarantees, ensuring that all clients see the latest committed data. However, it has the most overhead. This setting is suitable when consistency matters more than having high QPS.
3. **Custom interval (Eventual consistency)**: The database checks for updates at a custom interval, such as every 5 seconds. This provides eventual consistency, allowing for some lag between write and read operations. Performance wise, this is a middle ground between strong consistency and no consistency check. This setting is suitable for applications where immediate consistency is not critical, but clients should see updated data eventually.
!!! tip "Consistency in LanceDB Cloud"
This is only tune-able in LanceDB OSS. In LanceDB Cloud, readers are always eventually consistent.
=== "Python"
To set strong consistency, use `timedelta(0)`:
```python
from datetime import timedelta
db = lancedb.connect("./.lancedb",. read_consistency_interval=timedelta(0))
table = db.open_table("my_table")
```
For eventual consistency, use a custom `timedelta`:
```python
from datetime import timedelta
db = lancedb.connect("./.lancedb", read_consistency_interval=timedelta(seconds=5))
table = db.open_table("my_table")
```
By default, a `Table` will never check for updates from other writers. To manually check for updates you can use `checkout_latest`:
```python
db = lancedb.connect("./.lancedb")
table = db.open_table("my_table")
# (Other writes happen to my_table from another process)
# Check for updates
table.checkout_latest()
```
=== "Typescript[^1]"
To set strong consistency, use `0`:
```ts
const db = await lancedb.connect({ uri: "./.lancedb", readConsistencyInterval: 0 });
const table = await db.openTable("my_table");
```
For eventual consistency, specify the update interval as seconds:
```ts
const db = await lancedb.connect({ uri: "./.lancedb", readConsistencyInterval: 5 });
const table = await db.openTable("my_table");
```
<!-- Node doesn't yet support the version time travel: https://github.com/lancedb/lancedb/issues/1007
Once it does, we can show manual consistency check for Node as well.
-->
## What's next?
Learn the best practices on creating an ANN index and getting the most out of it.
[^1]: The `vectordb` package is a legacy package that is deprecated in favor of `@lancedb/lancedb`. The `vectordb` package will continue to receive bug fixes and security updates until September 2024. We recommend all new projects use `@lancedb/lancedb`. See the [migration guide](migration.md) for more information.
Learn how to Query your tables and create indices

View File

@@ -1,131 +0,0 @@
## Improving retriever performance
Try it yourself - <a href="https://colab.research.google.com/github/lancedb/lancedb/blob/main/docs/src/notebooks/lancedb_reranking.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a><br/>
VectorDBs are used as retreivers in recommender or chatbot-based systems for retrieving relevant data based on user queries. For example, retriever is a critical component of Retrieval Augmented Generation (RAG) acrhitectures. In this section, we will discuss how to improve the performance of retrievers.
There are serveral ways to improve the performance of retrievers. Some of the common techniques are:
* Using different query types
* Using hybrid search
* Fine-tuning the embedding models
* Using different embedding models
Using different embedding models is something that's very specific to the use case and the data. So we will not discuss it here. In this section, we will discuss the first three techniques.
!!! note "Note"
We'll be using a simple metric called "hit-rate" for evaluating the performance of the retriever across this guide. Hit-rate is the percentage of queries for which the retriever returned the correct answer in the top-k results. For example, if the retriever returned the correct answer in the top-3 results for 70% of the queries, then the hit-rate@3 is 0.7.
## The dataset
We'll be using a QA dataset generated using a LLama2 review paper. The dataset contains 221 query, context and answer triplets. The queries and answers are generated using GPT-4 based on a given query. Full script used to generate the dataset can be found on this [repo](https://github.com/lancedb/ragged). It can be downloaded from [here](https://github.com/AyushExel/assets/blob/main/data_qa.csv)
### Using different query types
Let's setup the embeddings and the dataset first. We'll use the LanceDB's `huggingface` embeddings integration for this guide.
```python
import lancedb
import pandas as pd
from lancedb.embeddings import get_registry
from lancedb.pydantic import Vector, LanceModel
db = lancedb.connect("~/lancedb/query_types")
df = pd.read_csv("data_qa.csv")
embed_fcn = get_registry().get("huggingface").create(name="BAAI/bge-small-en-v1.")
class Schema(LanceModel):
context: str = embed_fcn.SourceField()
vector: Vector(embed_fcn.ndims()) = embed_fcn.VectorField()
table = db.create_table("qa", schema=Schema)
table.add(df[["context"]].to_dict(orient="records"))
queries = df["query"].tolist()
```
Now that we have the dataset and embeddings table set up, here's how you can run different query types on the dataset.
* <b> Vector Search: </b>
```python
table.search(quries[0], query_type="vector").limit(5).to_pandas()
```
By default, LanceDB uses vector search query type for searching and it automatically converts the input query to a vector before searching when using embedding API. So, the following statement is equivalent to the above statement.
```python
table.search(quries[0]).limit(5).to_pandas()
```
Vector or semantic search is useful when you want to find documents that are similar to the query in terms of meaning.
---
* <b> Full-text Search: </b>
FTS requires creating an index on the column you want to search on. `replace=True` will replace the existing index if it exists.
Once the index is created, you can search using the `fts` query type.
```python
table.create_fts_index("context", replace=True)
table.search(quries[0], query_type="fts").limit(5).to_pandas()
```
Full-text search is useful when you want to find documents that contain the query terms.
---
* <b> Hybrid Search: </b>
Hybrid search is a combination of vector and full-text search. Here's how you can run a hybrid search query on the dataset.
```python
table.search(quries[0], query_type="hybrid").limit(5).to_pandas()
```
Hybrid search requires a reranker to combine and rank the results from vector and full-text search. We'll cover reranking as a concept in the next section.
Hybrid search is useful when you want to combine the benefits of both vector and full-text search.
!!! note "Note"
By default, it uses `LinearCombinationReranker` that combines the scores from vector and full-text search using a weighted linear combination. It is the simplest reranker implementation available in LanceDB. You can also use other rerankers like `CrossEncoderReranker` or `CohereReranker` for reranking the results.
Learn more about rerankers [here](https://lancedb.github.io/lancedb/reranking/)
### Hit rate evaluation results
Now that we have seen how to run different query types on the dataset, let's evaluate the hit-rate of each query type on the dataset.
For brevity, the entire evaluation script is not shown here. You can find the complete evaluation and benchmarking utility scripts [here](https://github.com/lancedb/ragged).
Here are the hit-rate results for the dataset:
| Query Type | Hit-rate@5 |
| --- | --- |
| Vector Search | 0.640 |
| Full-text Search | 0.595 |
| Hybrid Search (w/ LinearCombinationReranker) | 0.645 |
**Choosing query type** is very specific to the use case and the data. This synthetic dataset has been generated to be semantically challenging, i.e, the queries don't have a lot of keywords in common with the context. So, vector search performs better than full-text search. However, in real-world scenarios, full-text search might perform better than vector search. Hybrid search is a good choice when you want to combine the benefits of both vector and full-text search.
### Evaluation results on other datasets
The hit-rate results can vary based on the dataset and the query type. Here are the hit-rate results for the other datasets using the same embedding function.
* <b> SQuAD Dataset: </b>
| Query Type | Hit-rate@5 |
| --- | --- |
| Vector Search | 0.822 |
| Full-text Search | 0.835 |
| Hybrid Search (w/ LinearCombinationReranker) | 0.8874 |
* <b> Uber10K sec filing Dataset: </b>
| Query Type | Hit-rate@5 |
| --- | --- |
| Vector Search | 0.608 |
| Full-text Search | 0.82 |
| Hybrid Search (w/ LinearCombinationReranker) | 0.80 |
In these standard datasets, FTS seems to perform much better than vector search because the queries have a lot of keywords in common with the context. So, in general choosing the query type is very specific to the use case and the data.

View File

@@ -1,80 +0,0 @@
Continuing from the previous section, we can now rerank the results using more complex rerankers.
Try it yourself - <a href="https://colab.research.google.com/github/lancedb/lancedb/blob/main/docs/src/notebooks/lancedb_reranking.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a><br/>
## Reranking search results
You can rerank any search results using a reranker. The syntax for reranking is as follows:
```python
from lancedb.rerankers import LinearCombinationReranker
reranker = LinearCombinationReranker()
table.search(quries[0], query_type="hybrid").rerank(reranker=reranker).limit(5).to_pandas()
```
Based on the `query_type`, the `rerank()` function can accept other arguments as well. For example, hybrid search accepts a `normalize` param to determine the score normalization method.
!!! note "Note"
LanceDB provides a `Reranker` base class that can be extended to implement custom rerankers. Each reranker must implement the `rerank_hybrid` method. `rerank_vector` and `rerank_fts` methods are optional. For example, the `LinearCombinationReranker` only implements the `rerank_hybrid` method and so it can only be used for reranking hybrid search results.
## Choosing a Reranker
There are many rerankers available in LanceDB like `CrossEncoderReranker`, `CohereReranker`, and `ColBERT`. The choice of reranker depends on the dataset and the application. You can even implement you own custom reranker by extending the `Reranker` class. For more details about each available reranker and performance comparison, refer to the [rerankers](https://lancedb.github.io/lancedb/reranking/) documentation.
In this example, we'll use the `CohereReranker` to rerank the search results. It requires `cohere` to be installed and `COHERE_API_KEY` to be set in the environment. To get your API key, sign up on [Cohere](https://cohere.ai/).
```python
from lancedb.rerankers import CohereReranker
# use Cohere reranker v3
reranker = CohereReranker(model_name="rerank-english-v3.0") # default model is "rerank-english-v2.0"
```
### Reranking search results
Now we can rerank all query type results using the `CohereReranker`:
```python
# rerank hybrid search results
table.search(quries[0], query_type="hybrid").rerank(reranker=reranker).limit(5).to_pandas()
# rerank vector search results
table.search(quries[0], query_type="vector").rerank(reranker=reranker).limit(5).to_pandas()
# rerank fts search results
table.search(quries[0], query_type="fts").rerank(reranker=reranker).limit(5).to_pandas()
```
Each reranker can accept additional arguments. For example, `CohereReranker` accepts `top_k` and `batch_size` params to control the number of documents to rerank and the batch size for reranking respectively. Similarly, a custom reranker can accept any number of arguments based on the implementation. For example, a reranker can accept a `filter` that implements some custom logic to filter out documents before reranking.
## Results
Let us take a look at the same datasets from the previous sections, using the same embedding table but with Cohere reranker applied to all query types.
!!! note "Note"
When reranking fts or vector search results, the search results are over-fetched by a factor of 2 and then reranked. From the reranked set, `top_k` (5 in this case) results are taken. This is done because reranking will have no effect on the hit-rate if we only fetch the `top_k` results.
### Synthetic LLama2 paper dataset
| Query Type | Hit-rate@5 |
| --- | --- |
| Vector | 0.640 |
| FTS | 0.595 |
| Reranked vector | 0.677 |
| Reranked fts | 0.672 |
| Hybrid | 0.759 |
### SQuAD Dataset
### Uber10K sec filing Dataset
| Query Type | Hit-rate@5 |
| --- | --- |
| Vector | 0.608 |
| FTS | 0.824 |
| Reranked vector | 0.671 |
| Reranked fts | 0.843 |
| Hybrid | 0.849 |

View File

@@ -1,82 +0,0 @@
## Finetuning the Embedding Model
Try it yourself - <a href="https://colab.research.google.com/github/lancedb/lancedb/blob/main/docs/src/notebooks/embedding_tuner.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab"></a><br/>
Another way to improve retriever performance is to fine-tune the embedding model itself. Fine-tuning the embedding model can help in learning better representations for the documents and queries in the dataset. This can be particularly useful when the dataset is very different from the pre-trained data used to train the embedding model.
We'll use the same dataset as in the previous sections. Start off by splitting the dataset into training and validation sets:
```python
from sklearn.model_selection import train_test_split
train_df, validation_df = train_test_split("data_qa.csv", test_size=0.2, random_state=42)
train_df.to_csv("data_train.csv", index=False)
validation_df.to_csv("data_val.csv", index=False)
```
You can use any tuning API to fine-tune embedding models. In this example, we'll utilise Llama-index as it also comes with utilities for synthetic data generation and training the model.
Then parse the dataset as llama-index text nodes and generate synthetic QA pairs from each node.
```python
from llama_index.core.node_parser import SentenceSplitter
from llama_index.readers.file import PagedCSVReader
from llama_index.finetuning import generate_qa_embedding_pairs
from llama_index.core.evaluation import EmbeddingQAFinetuneDataset
def load_corpus(file):
loader = PagedCSVReader(encoding="utf-8")
docs = loader.load_data(file=Path(file))
parser = SentenceSplitter()
nodes = parser.get_nodes_from_documents(docs)
return nodes
from llama_index.llms.openai import OpenAI
train_dataset = generate_qa_embedding_pairs(
llm=OpenAI(model="gpt-3.5-turbo"), nodes=train_nodes, verbose=False
)
val_dataset = generate_qa_embedding_pairs(
llm=OpenAI(model="gpt-3.5-turbo"), nodes=val_nodes, verbose=False
)
```
Now we'll use `SentenceTransformersFinetuneEngine` engine to fine-tune the model. You can also use `sentence-transformers` or `transformers` library to fine-tune the model.
```python
from llama_index.finetuning import SentenceTransformersFinetuneEngine
finetune_engine = SentenceTransformersFinetuneEngine(
train_dataset,
model_id="BAAI/bge-small-en-v1.5",
model_output_path="tuned_model",
val_dataset=val_dataset,
)
finetune_engine.finetune()
embed_model = finetune_engine.get_finetuned_model()
```
This saves the fine tuned embedding model in `tuned_model` folder. This al
# Evaluation results
In order to eval the retriever, you can either use this model to ingest the data into LanceDB directly or llama-index's LanceDB integration to create a `VectorStoreIndex` and use it as a retriever.
On performing the same hit-rate evaluation as before, we see a significant improvement in the hit-rate across all query types.
### Baseline
| Query Type | Hit-rate@5 |
| --- | --- |
| Vector Search | 0.640 |
| Full-text Search | 0.595 |
| Reranked Vector Search | 0.677 |
| Reranked Full-text Search | 0.672 |
| Hybrid Search (w/ CohereReranker) | 0.759|
### Fine-tuned model ( 2 iterations )
| Query Type | Hit-rate@5 |
| --- | --- |
| Vector Search | 0.672 |
| Full-text Search | 0.595 |
| Reranked Vector Search | 0.754 |
| Reranked Full-text Search | 0.672|
| Hybrid Search (w/ CohereReranker) | 0.768 |

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@@ -1,51 +0,0 @@
# Hybrid Search
Hybrid Search is a broad (often misused) term. It can mean anything from combining multiple methods for searching, to applying ranking methods to better sort the results. In this blog, we use the definition of "hybrid search" to mean using a combination of keyword-based and vector search.
## The challenge of (re)ranking search results
Once you have a group of the most relevant search results from multiple search sources, you'd likely standardize the score and rank them accordingly. This process can also be seen as another independent step-reranking.
There are two approaches for reranking search results from multiple sources.
* <b>Score-based</b>: Calculate final relevance scores based on a weighted linear combination of individual search algorithm scores. Example-Weighted linear combination of semantic search & keyword-based search results.
* <b>Relevance-based</b>: Discards the existing scores and calculates the relevance of each search result-query pair. Example-Cross Encoder models
Even though there are many strategies for reranking search results, none works for all cases. Moreover, evaluating them itself is a challenge. Also, reranking can be dataset, application specific so it's hard to generalize.
### Example evaluation of hybrid search with Reranking
Here's some evaluation numbers from experiment comparing these re-rankers on about 800 queries. It is modified version of an evaluation script from [llama-index](https://github.com/run-llama/finetune-embedding/blob/main/evaluate.ipynb) that measures hit-rate at top-k.
<b> With OpenAI ada2 embedding </b>
Vector Search baseline - `0.64`
| Reranker | Top-3 | Top-5 | Top-10 |
| --- | --- | --- | --- |
| Linear Combination | `0.73` | `0.74` | `0.85` |
| Cross Encoder | `0.71` | `0.70` | `0.77` |
| Cohere | `0.81` | `0.81` | `0.85` |
| ColBERT | `0.68` | `0.68` | `0.73` |
<p>
<img src="https://github.com/AyushExel/assets/assets/15766192/d57b1780-ef27-414c-a5c3-73bee7808a45">
</p>
<b> With OpenAI embedding-v3-small </b>
Vector Search baseline - `0.59`
| Reranker | Top-3 | Top-5 | Top-10 |
| --- | --- | --- | --- |
| Linear Combination | `0.68` | `0.70` | `0.84` |
| Cross Encoder | `0.72` | `0.72` | `0.79` |
| Cohere | `0.79` | `0.79` | `0.84` |
| ColBERT | `0.70` | `0.70` | `0.76` |
<p>
<img src="https://github.com/AyushExel/assets/assets/15766192/259adfd2-6ec6-4df6-a77d-1456598970dd">
</p>
### Conclusion
The results show that the reranking methods are able to improve the search results. However, the improvement is not consistent across all rerankers. The choice of reranker depends on the dataset and the application. It is also important to note that the reranking methods are not a replacement for the search methods. They are complementary and should be used together to get the best results. The speed to recall tradeoff is also an important factor to consider when choosing the reranker.

View File

@@ -1,242 +0,0 @@
# Hybrid Search
LanceDB supports both semantic and keyword-based search (also termed full-text search, or FTS). In real world applications, it is often useful to combine these two approaches to get the best best results. For example, you may want to search for a document that is semantically similar to a query document, but also contains a specific keyword. This is an example of *hybrid search*, a search algorithm that combines multiple search techniques.
## Hybrid search in LanceDB
You can perform hybrid search in LanceDB by combining the results of semantic and full-text search via a reranking algorithm of your choice. LanceDB provides multiple rerankers out of the box. However, you can always write a custom reranker if your use case need more sophisticated logic .
```python
import os
import lancedb
import openai
from lancedb.embeddings import get_registry
from lancedb.pydantic import LanceModel, Vector
db = lancedb.connect("~/.lancedb")
# Ingest embedding function in LanceDB table
# Configuring the environment variable OPENAI_API_KEY
if "OPENAI_API_KEY" not in os.environ:
# OR set the key here as a variable
openai.api_key = "sk-..."
embeddings = get_registry().get("openai").create()
class Documents(LanceModel):
vector: Vector(embeddings.ndims()) = embeddings.VectorField()
text: str = embeddings.SourceField()
table = db.create_table("documents", schema=Documents)
data = [
{ "text": "rebel spaceships striking from a hidden base"},
{ "text": "have won their first victory against the evil Galactic Empire"},
{ "text": "during the battle rebel spies managed to steal secret plans"},
{ "text": "to the Empire's ultimate weapon the Death Star"}
]
# ingest docs with auto-vectorization
table.add(data)
# Create a fts index before the hybrid search
table.create_fts_index("text")
# hybrid search with default re-ranker
results = table.search("flower moon", query_type="hybrid").to_pandas()
```
By default, LanceDB uses `LinearCombinationReranker(weight=0.7)` to combine and rerank the results of semantic and full-text search. You can customize the hyperparameters as needed or write your own custom reranker. Here's how you can use any of the available rerankers:
### `rerank()` arguments
* `normalize`: `str`, default `"score"`:
The method to normalize the scores. Can be "rank" or "score". If "rank", the scores are converted to ranks and then normalized. If "score", the scores are normalized directly.
* `reranker`: `Reranker`, default `LinearCombinationReranker(weight=0.7)`.
The reranker to use. If not specified, the default reranker is used.
## Available Rerankers
LanceDB provides a number of re-rankers out of the box. You can use any of these re-rankers by passing them to the `rerank()` method. Here's a list of available re-rankers:
### Linear Combination Reranker
This is the default re-ranker used by LanceDB. It combines the results of semantic and full-text search using a linear combination of the scores. The weights for the linear combination can be specified. It defaults to 0.7, i.e, 70% weight for semantic search and 30% weight for full-text search.
```python
from lancedb.rerankers import LinearCombinationReranker
reranker = LinearCombinationReranker(weight=0.3) # Use 0.3 as the weight for vector search
results = table.search("rebel", query_type="hybrid").rerank(reranker=reranker).to_pandas()
```
### Arguments
----------------
* `weight`: `float`, default `0.7`:
The weight to use for the semantic search score. The weight for the full-text search score is `1 - weights`.
* `fill`: `float`, default `1.0`:
The score to give to results that are only in one of the two result sets.This is treated as penalty, so a higher value means a lower score.
TODO: We should just hardcode this-- its pretty confusing as we invert scores to calculate final score
* `return_score` : str, default `"relevance"`
options are "relevance" or "all"
The type of score to return. If "relevance", will return only the `_relevance_score. If "all", will return all scores from the vector and FTS search along with the relevance score.
### Cohere Reranker
This re-ranker uses the [Cohere](https://cohere.ai/) API to combine the results of semantic and full-text search. You can use this re-ranker by passing `CohereReranker()` to the `rerank()` method. Note that you'll need to set the `COHERE_API_KEY` environment variable to use this re-ranker.
```python
from lancedb.rerankers import CohereReranker
reranker = CohereReranker()
results = table.search("vampire weekend", query_type="hybrid").rerank(reranker=reranker).to_pandas()
```
### Arguments
----------------
* `model_name` : str, default `"rerank-english-v2.0"`
The name of the cross encoder model to use. Available cohere models are:
- rerank-english-v2.0
- rerank-multilingual-v2.0
* `column` : str, default `"text"`
The name of the column to use as input to the cross encoder model.
* `top_n` : str, default `None`
The number of results to return. If None, will return all results.
!!! Note
Only returns `_relevance_score`. Does not support `return_score = "all"`.
### Cross Encoder Reranker
This reranker uses the [Sentence Transformers](https://www.sbert.net/) library to combine the results of semantic and full-text search. You can use it by passing `CrossEncoderReranker()` to the `rerank()` method.
```python
from lancedb.rerankers import CrossEncoderReranker
reranker = CrossEncoderReranker()
results = table.search("harmony hall", query_type="hybrid").rerank(reranker=reranker).to_pandas()
```
### Arguments
----------------
* `model` : str, default `"cross-encoder/ms-marco-TinyBERT-L-6"`
The name of the cross encoder model to use. Available cross encoder models can be found [here](https://www.sbert.net/docs/pretrained_cross-encoders.html)
* `column` : str, default `"text"`
The name of the column to use as input to the cross encoder model.
* `device` : str, default `None`
The device to use for the cross encoder model. If None, will use "cuda" if available, otherwise "cpu".
!!! Note
Only returns `_relevance_score`. Does not support `return_score = "all"`.
### ColBERT Reranker
This reranker uses the ColBERT model to combine the results of semantic and full-text search. You can use it by passing `ColbertrReranker()` to the `rerank()` method.
ColBERT reranker model calculates relevance of given docs against the query and don't take existing fts and vector search scores into account, so it currently only supports `return_score="relevance"`. By default, it looks for `text` column to rerank the results. But you can specify the column name to use as input to the cross encoder model as described below.
```python
from lancedb.rerankers import ColbertReranker
reranker = ColbertReranker()
results = table.search("harmony hall", query_type="hybrid").rerank(reranker=reranker).to_pandas()
```
### Arguments
----------------
* `model_name` : `str`, default `"colbert-ir/colbertv2.0"`
The name of the cross encoder model to use.
* `column` : `str`, default `"text"`
The name of the column to use as input to the cross encoder model.
* `return_score` : `str`, default `"relevance"`
options are `"relevance"` or `"all"`. Only `"relevance"` is supported for now.
!!! Note
Only returns `_relevance_score`. Does not support `return_score = "all"`.
### OpenAI Reranker
This reranker uses the OpenAI API to combine the results of semantic and full-text search. You can use it by passing `OpenaiReranker()` to the `rerank()` method.
!!! Note
This prompts chat model to rerank results which is not a dedicated reranker model. This should be treated as experimental.
!!! Tip
- You might run out of token limit so set the search `limits` based on your token limit.
- It is recommended to use gpt-4-turbo-preview, the default model, older models might lead to undesired behaviour
```python
from lancedb.rerankers import OpenaiReranker
reranker = OpenaiReranker()
results = table.search("harmony hall", query_type="hybrid").rerank(reranker=reranker).to_pandas()
```
### Arguments
----------------
* `model_name` : `str`, default `"gpt-4-turbo-preview"`
The name of the cross encoder model to use.
* `column` : `str`, default `"text"`
The name of the column to use as input to the cross encoder model.
* `return_score` : `str`, default `"relevance"`
options are "relevance" or "all". Only "relevance" is supported for now.
* `api_key` : `str`, default `None`
The API key to use. If None, will use the OPENAI_API_KEY environment variable.
## Building Custom Rerankers
You can build your own custom reranker by subclassing the `Reranker` class and implementing the `rerank_hybrid()` method. Here's an example of a custom reranker that combines the results of semantic and full-text search using a linear combination of the scores.
The `Reranker` base interface comes with a `merge_results()` method that can be used to combine the results of semantic and full-text search. This is a vanilla merging algorithm that simply concatenates the results and removes the duplicates without taking the scores into consideration. It only keeps the first copy of the row encountered. This works well in cases that don't require the scores of semantic and full-text search to combine the results. If you want to use the scores or want to support `return_score="all"`, you'll need to implement your own merging algorithm.
```python
from lancedb.rerankers import Reranker
import pyarrow as pa
class MyReranker(Reranker):
def __init__(self, param1, param2, ..., return_score="relevance"):
super().__init__(return_score)
self.param1 = param1
self.param2 = param2
def rerank_hybrid(self, query: str, vector_results: pa.Table, fts_results: pa.Table):
# Use the built-in merging function
combined_result = self.merge_results(vector_results, fts_results)
# Do something with the combined results
# ...
# Return the combined results
return combined_result
```
### Example of a Custom Reranker
For the sake of simplicity let's build custom reranker that just enchances the Cohere Reranker by accepting a filter query, and accept other CohereReranker params as kwags.
```python
from typing import List, Union
import pandas as pd
from lancedb.rerankers import CohereReranker
class MofidifiedCohereReranker(CohereReranker):
def __init__(self, filters: Union[str, List[str]], **kwargs):
super().__init__(**kwargs)
filters = filters if isinstance(filters, list) else [filters]
self.filters = filters
def rerank_hybrid(self, query: str, vector_results: pa.Table, fts_results: pa.Table)-> pa.Table:
combined_result = super().rerank_hybrid(query, vector_results, fts_results)
df = combined_result.to_pandas()
for filter in self.filters:
df = df.query("not text.str.contains(@filter)")
return pa.Table.from_pandas(df)
```
!!! tip
The `vector_results` and `fts_results` are pyarrow tables. You can convert them to pandas dataframes using `to_pandas()` method and perform any operations you want. After you are done, you can convert the dataframe back to pyarrow table using `pa.Table.from_pandas()` method and return it.

View File

@@ -1,57 +1,75 @@
# LanceDB
LanceDB is an open-source vector database for AI that's designed to store, manage, query and retrieve embeddings on large-scale multi-modal data. The core of LanceDB is written in Rust 🦀 and is built on top of [Lance](https://github.com/lancedb/lance), an open-source columnar data format designed for performant ML workloads and fast random access.
LanceDB is an open-source database for vector-search built with persistent storage, which greatly simplifies retrieval, filtering and management of embeddings.
Both the database and the underlying data format are designed from the ground up to be **easy-to-use**, **scalable** and **cost-effective**.
![Illustration](/lancedb/assets/ecosystem-illustration.png)
![](assets/lancedb_and_lance.png)
The key features of LanceDB include:
## Truly multi-modal
* Store, query and filter vectors, metadata and multi-modal data (text, images, videos, point clouds, and more).
Most existing vector databases that store and query just the embeddings and their metadata. The actual data is stored elsewhere, requiring you to manage their storage and versioning separately.
* Support for production-scale vector similarity search, full-text search and SQL, with no servers to manage.
LanceDB supports storage of the *actual data itself*, alongside the embeddings and metadata. You can persist your images, videos, text documents, audio files and more in the Lance format, which provides automatic data versioning and blazing fast retrievals and filtering via LanceDB.
* Native Python and Javascript/Typescript support.
## Open-source and cloud solutions
* Zero-copy, automatic versioning, manage versions of your data without needing extra infrastructure.
LanceDB is available in two flavors: **OSS** and **Cloud**.
* Persisted on HDD, allowing scalability without breaking the bank.
LanceDB **OSS** is an **open-source**, batteries-included embedded vector database that you can run on your own infrastructure. "Embedded" means that it runs *in-process*, making it incredibly simple to self-host your own AI retrieval workflows for RAG and more. No servers, no hassle.
* Ingest your favorite data formats directly, like pandas DataFrames, Pydantic objects and more.
LanceDB **Cloud** is a SaaS (software-as-a-service) solution that runs serverless in the cloud, making the storage clearly separated from compute. It's designed to be cost-effective and highly scalable without breaking the bank. LanceDB Cloud is currently in private beta with general availability coming soon, but you can apply for early access with the private beta release by signing up below.
[Try out LanceDB Cloud](https://noteforms.com/forms/lancedb-mailing-list-cloud-kty1o5?notionforms=1&utm_source=notionforms){ .md-button .md-button--primary }
LanceDB's core is written in Rust 🦀 and is built using <a href="https://github.com/lancedb/lance">Lance</a>, an open-source columnar format designed for performant ML workloads.
## Why use LanceDB?
## Quick Start
* Embedded (OSS) and serverless (Cloud) - no need to manage servers
=== "Python"
```shell
pip install lancedb
```
* Fast production-scale vector similarity, full-text & hybrid search and a SQL query interface (via [DataFusion](https://github.com/apache/arrow-datafusion))
```python
import lancedb
* Python, Javascript/Typescript, and Rust support
uri = "data/sample-lancedb"
db = lancedb.connect(uri)
table = db.create_table("my_table",
data=[{"vector": [3.1, 4.1], "item": "foo", "price": 10.0},
{"vector": [5.9, 26.5], "item": "bar", "price": 20.0}])
result = table.search([100, 100]).limit(2).to_list()
```
* Store, query & manage multi-modal data (text, images, videos, point clouds, etc.), not just the embeddings and metadata
=== "Javascript"
```shell
npm install vectordb
```
* Tight integration with the [Arrow](https://arrow.apache.org/docs/format/Columnar.html) ecosystem, allowing true zero-copy access in shared memory with SIMD and GPU acceleration
```javascript
const lancedb = require("vectordb");
* Automatic data versioning to manage versions of your data without needing extra infrastructure
const uri = "data/sample-lancedb";
const db = await lancedb.connect(uri);
const table = await db.createTable("my_table",
[{ id: 1, vector: [3.1, 4.1], item: "foo", price: 10.0 },
{ id: 2, vector: [5.9, 26.5], item: "bar", price: 20.0 }])
const results = await table.search([100, 100]).limit(2).execute();
```
* Disk-based index & storage, allowing for massive scalability without breaking the bank
## Complete Demos (Python)
- [YouTube Transcript Search](notebooks/youtube_transcript_search.ipynb)
- [Documentation QA Bot using LangChain](notebooks/code_qa_bot.ipynb)
- [Multimodal search using CLIP](notebooks/multimodal_search.ipynb)
- [Serverless QA Bot with S3 and Lambda](examples/serverless_lancedb_with_s3_and_lambda.md)
- [Serverless QA Bot with Modal](examples/serverless_qa_bot_with_modal_and_langchain.md)
* Ingest your favorite data formats directly, like pandas DataFrames, Pydantic objects, Polars (coming soon), and more
## Complete Demos (JavaScript)
- [YouTube Transcript Search](examples/youtube_transcript_bot_with_nodejs.md)
## Documentation guide
The following pages go deeper into the internal of LanceDB and how to use it.
* [Quick start](basic.md): Get started with LanceDB and vector DB concepts
* [Vector search concepts](concepts/vector_search.md): Understand the basics of vector search
* [Working with tables](guides/tables.md): Learn how to work with tables and their associated functions
* [Indexing](ann_indexes.md): Understand how to create indexes
* [Vector search](search.md): Learn how to perform vector similarity search
* [Full-text search](fts.md): Learn how to perform full-text search
* [Managing embeddings](embeddings/index.md): Managing embeddings and the embedding functions API in LanceDB
* [Ecosystem Integrations](integrations/index.md): Integrate LanceDB with other tools in the data ecosystem
* [Python API Reference](python/python.md): Python OSS and Cloud API references
* [JavaScript API Reference](javascript/modules.md): JavaScript OSS and Cloud API references
* [Rust API Reference](https://docs.rs/lancedb/latest/lancedb/index.html): Rust API reference
## Documentation Quick Links
* [`Basic Operations`](basic.md) - basic functionality of LanceDB.
* [`Embedding Functions`](embeddings/index.md) - functions for working with embeddings.
* [`Indexing`](ann_indexes.md) - create vector indexes to speed up queries.
* [`Full text search`](fts.md) - [EXPERIMENTAL] full-text search API
* [`Ecosystem Integrations`](python/integration.md) - integrating LanceDB with python data tooling ecosystem.
* [`Python API Reference`](python/python.md) - detailed documentation for the LanceDB Python SDK.
* [`Node API Reference`](javascript/modules.md) - detailed documentation for the LanceDB Node SDK.

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