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98 Commits

Author SHA1 Message Date
qzhu
8e25e0c7f0 reformatted 2023-12-07 12:08:05 -08:00
qzhu
5f989e86d2 SaaS python SDK doc 2023-12-07 12:01:03 -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
401 changed files with 13553 additions and 51248 deletions

View File

@@ -1,5 +1,5 @@
[bumpversion] [bumpversion]
current_version = 0.4.17 current_version = 0.3.9
commit = True commit = True
message = Bump version: {current_version} → {new_version} message = Bump version: {current_version} → {new_version}
tag = True tag = True
@@ -7,16 +7,6 @@ tag_name = v{new_version}
[bumpversion:file:node/package.json] [bumpversion:file:node/package.json]
[bumpversion:file:nodejs/package.json]
[bumpversion:file:nodejs/npm/darwin-x64/package.json]
[bumpversion:file:nodejs/npm/darwin-arm64/package.json]
[bumpversion:file:nodejs/npm/linux-x64-gnu/package.json]
[bumpversion:file:nodejs/npm/linux-arm64-gnu/package.json]
[bumpversion:file:rust/ffi/node/Cargo.toml] [bumpversion:file:rust/ffi/node/Cargo.toml]
[bumpversion:file:rust/lancedb/Cargo.toml] [bumpversion:file:rust/vectordb/Cargo.toml]

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"]

View File

@@ -1,33 +0,0 @@
name: Bug Report - Node / Typescript
description: File a bug report
title: "bug(node): "
labels: [bug, typescript]
body:
- type: markdown
attributes:
value: |
Thanks for taking the time to fill out this bug report!
- type: input
id: version
attributes:
label: LanceDB version
description: What version of LanceDB are you using? `npm list | grep vectordb`.
placeholder: v0.3.2
validations:
required: false
- type: textarea
id: what-happened
attributes:
label: What happened?
description: Also tell us, what did you expect to happen?
validations:
required: true
- type: textarea
id: reproduction
attributes:
label: Are there known steps to reproduce?
description: |
Let us know how to reproduce the bug and we may be able to fix it more
quickly. This is not required, but it is helpful.
validations:
required: false

View File

@@ -1,33 +0,0 @@
name: Bug Report - Python
description: File a bug report
title: "bug(python): "
labels: [bug, python]
body:
- type: markdown
attributes:
value: |
Thanks for taking the time to fill out this bug report!
- type: input
id: version
attributes:
label: LanceDB version
description: What version of LanceDB are you using? `python -c "import lancedb; print(lancedb.__version__)"`.
placeholder: v0.3.2
validations:
required: false
- type: textarea
id: what-happened
attributes:
label: What happened?
description: Also tell us, what did you expect to happen?
validations:
required: true
- type: textarea
id: reproduction
attributes:
label: Are there known steps to reproduce?
description: |
Let us know how to reproduce the bug and we may be able to fix it more
quickly. This is not required, but it is helpful.
validations:
required: false

View File

@@ -1,5 +0,0 @@
blank_issues_enabled: true
contact_links:
- name: Discord Community Support
url: https://discord.com/invite/zMM32dvNtd
about: Please ask and answer questions here.

View File

@@ -1,23 +0,0 @@
name: 'Documentation improvement'
description: Report an issue with the documentation.
labels: [documentation]
body:
- type: textarea
id: description
attributes:
label: Description
description: >
Describe the issue with the documentation and how it can be fixed or improved.
validations:
required: true
- type: input
id: link
attributes:
label: Link
description: >
Provide a link to the existing documentation, if applicable.
placeholder: ex. https://lancedb.github.io/lancedb/guides/tables/...
validations:
required: false

View File

@@ -1,31 +0,0 @@
name: Feature suggestion
description: Suggestion a new feature for LanceDB
title: "Feature: "
labels: [enhancement]
body:
- type: markdown
attributes:
value: |
Share a new idea for a feature or improvement. Be sure to search existing
issues first to avoid duplicates.
- type: dropdown
id: sdk
attributes:
label: SDK
description: Which SDK are you using? This helps us prioritize.
options:
- Python
- Node
- Rust
default: 0
validations:
required: false
- type: textarea
id: description
attributes:
label: Description
description: |
Describe the feature and why it would be useful. If applicable, consider
providing a code example of what it might be like to use the feature.
validations:
required: true

View File

@@ -1,62 +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
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

@@ -1,25 +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: ${{ inputs.args }}
working-directory: python
interpreter: 3.${{ inputs.python-minor-version }}

View File

@@ -1,33 +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 }}
working-directory: python
- uses: actions/upload-artifact@v3
with:
name: windows-wheels
path: python\target\wheels

View File

@@ -8,9 +8,6 @@ env:
# This env var is used by Swatinem/rust-cache@v2 for the cache # 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. # key, so we set it to make sure it is always consistent.
CARGO_TERM_COLOR: always CARGO_TERM_COLOR: always
# Up-to-date compilers needed for fp16kernels.
CC: gcc-12
CXX: g++-12
jobs: jobs:
build: build:
@@ -19,7 +16,7 @@ jobs:
# Only runs on tags that matches the make-release action # Only runs on tags that matches the make-release action
if: startsWith(github.ref, 'refs/tags/v') if: startsWith(github.ref, 'refs/tags/v')
steps: steps:
- uses: actions/checkout@v4 - uses: actions/checkout@v3
- uses: Swatinem/rust-cache@v2 - uses: Swatinem/rust-cache@v2
with: with:
workspaces: rust workspaces: rust
@@ -29,4 +26,4 @@ jobs:
sudo apt install -y protobuf-compiler libssl-dev sudo apt install -y protobuf-compiler libssl-dev
- name: Publish the package - name: Publish the package
run: | 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

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

View File

@@ -18,30 +18,26 @@ on:
env: env:
# Disable full debug symbol generation to speed up CI build and keep memory down # 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. # "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" RUST_BACKTRACE: "1"
jobs: jobs:
test-python: test-python:
name: Test doc python code name: Test doc python code
runs-on: "buildjet-8vcpu-ubuntu-2204" runs-on: ${{ matrix.os }}
strategy:
matrix:
python-minor-version: [ "11" ]
os: ["ubuntu-22.04"]
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v3
- name: Print CPU capabilities
run: cat /proc/cpuinfo
- name: Install dependecies needed for ubuntu
run: |
sudo apt install -y protobuf-compiler libssl-dev
rustup update && rustup default
- name: Set up Python - name: Set up Python
uses: actions/setup-python@v5 uses: actions/setup-python@v4
with: with:
python-version: 3.11 python-version: 3.${{ matrix.python-minor-version }}
cache: "pip" cache: "pip"
cache-dependency-path: "docs/test/requirements.txt" cache-dependency-path: "docs/test/requirements.txt"
- name: Rust cache
uses: swatinem/rust-cache@v2
- name: Build Python - name: Build Python
working-directory: docs/test working-directory: docs/test
run: run:
@@ -56,45 +52,42 @@ jobs:
for d in *; do cd "$d"; echo "$d".py; python "$d".py; cd ..; done for d in *; do cd "$d"; echo "$d".py; python "$d".py; cd ..; done
test-node: test-node:
name: Test doc nodejs code name: Test doc nodejs code
runs-on: "buildjet-8vcpu-ubuntu-2204" runs-on: ${{ matrix.os }}
timeout-minutes: 60
strategy: strategy:
fail-fast: false matrix:
node-version: [ "18" ]
os: ["ubuntu-22.04"]
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v3
with: with:
fetch-depth: 0 fetch-depth: 0
lfs: true lfs: true
- name: Print CPU capabilities
run: cat /proc/cpuinfo
- name: Set up Node - name: Set up Node
uses: actions/setup-node@v4 uses: actions/setup-node@v3
with: with:
node-version: 20 node-version: ${{ matrix.node-version }}
- name: Install dependecies needed for ubuntu - name: Install dependecies needed for ubuntu
if: ${{ matrix.os == 'ubuntu-22.04' }}
run: | run: |
sudo apt install -y protobuf-compiler libssl-dev sudo apt install -y protobuf-compiler libssl-dev
rustup update && rustup default
- name: Rust cache
uses: swatinem/rust-cache@v2
- name: Install node dependencies - name: Install node dependencies
run: | run: |
sudo swapoff -a cd docs/test
sudo fallocate -l 8G /swapfile npm install
sudo chmod 600 /swapfile - name: Rust cache
sudo mkswap /swapfile uses: swatinem/rust-cache@v2
sudo swapon /swapfile - name: Install LanceDB
sudo swapon --show run: |
cd node cd docs/test/node_modules/vectordb
npm ci npm ci
npm run build-release npm run build-release
cd ../docs npm run tsc
npm install - name: Create test files
- name: Test
env:
LANCEDB_URI: ${{ secrets.LANCEDB_URI }}
LANCEDB_DEV_API_KEY: ${{ secrets.LANCEDB_DEV_API_KEY }}
run: | run: |
cd docs cd docs/test
npm t node md_testing.js
- name: Test
run: |
cd docs/test/node
for d in *; do cd "$d"; echo "$d".js; node "$d".js; cd ..; done

View File

@@ -26,7 +26,7 @@ jobs:
runs-on: ubuntu-latest runs-on: ubuntu-latest
steps: steps:
- name: Check out main - name: Check out main
uses: actions/checkout@v4 uses: actions/checkout@v3
with: with:
ref: main ref: main
persist-credentials: false persist-credentials: false
@@ -37,10 +37,10 @@ jobs:
run: | run: |
git config user.name 'Lance Release' git config user.name 'Lance Release'
git config user.email 'lance-dev@lancedb.com' git config user.email 'lance-dev@lancedb.com'
- name: Set up Python 3.11 - name: Set up Python 3.10
uses: actions/setup-python@v5 uses: actions/setup-python@v4
with: with:
python-version: "3.11" python-version: "3.10"
- name: Bump version, create tag and commit - name: Bump version, create tag and commit
run: | run: |
pip install bump2version pip install bump2version

View File

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

View File

@@ -1,123 +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
npm run chkformat
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

@@ -15,11 +15,11 @@ jobs:
working-directory: node working-directory: node
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v3
- uses: actions/setup-node@v3 - uses: actions/setup-node@v3
with: with:
node-version: 20 node-version: 20
cache: "npm" cache: 'npm'
cache-dependency-path: node/package-lock.json cache-dependency-path: node/package-lock.json
- name: Install dependencies - name: Install dependencies
run: | run: |
@@ -31,72 +31,41 @@ jobs:
npm run tsc npm run tsc
npm pack npm pack
- name: Upload Linux Artifacts - name: Upload Linux Artifacts
uses: actions/upload-artifact@v4 uses: actions/upload-artifact@v3
with: with:
name: node-package name: node-package
path: | path: |
node/vectordb-*.tgz node/vectordb-*.tgz
node-macos: node-macos:
strategy: runs-on: macos-13
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 # Only runs on tags that matches the make-release action
if: startsWith(github.ref, 'refs/tags/v') if: startsWith(github.ref, 'refs/tags/v')
strategy:
fail-fast: false
matrix:
target: [x86_64-apple-darwin, aarch64-apple-darwin]
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v3
- name: Install system dependencies - name: Install system dependencies
run: brew install protobuf run: brew install protobuf
- name: Install npm dependencies - name: Install npm dependencies
run: | run: |
cd node cd node
npm ci npm ci
- name: Install rustup target
if: ${{ matrix.target == 'aarch64-apple-darwin' }}
run: rustup target add aarch64-apple-darwin
- name: Build MacOS native node modules - name: Build MacOS native node modules
run: bash ci/build_macos_artifacts.sh ${{ matrix.config.arch }} run: bash ci/build_macos_artifacts.sh ${{ matrix.target }}
- name: Upload Darwin Artifacts - name: Upload Darwin Artifacts
uses: actions/upload-artifact@v4 uses: actions/upload-artifact@v3
with: with:
name: node-native-darwin-${{ matrix.config.arch }} name: native-darwin
path: | path: |
node/dist/lancedb-vectordb-darwin*.tgz 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: node-linux:
name: node-linux (${{ matrix.config.arch}}-unknown-linux-gnu name: node-linux (${{ matrix.config.arch}}-unknown-linux-gnu
runs-on: ${{ matrix.config.runner }} runs-on: ${{ matrix.config.runner }}
@@ -109,86 +78,20 @@ jobs:
- arch: x86_64 - arch: x86_64
runner: ubuntu-latest runner: ubuntu-latest
- arch: aarch64 - arch: aarch64
# For successful fat LTO builds, we need a large runner to avoid OOM errors. runner: buildjet-4vcpu-ubuntu-2204-arm
runner: buildjet-16vcpu-ubuntu-2204-arm
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v3
# 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 - name: Build Linux Artifacts
run: | run: |
bash ci/build_linux_artifacts.sh ${{ matrix.config.arch }} bash ci/build_linux_artifacts.sh ${{ matrix.config.arch }}
- name: Upload Linux Artifacts - name: Upload Linux Artifacts
uses: actions/upload-artifact@v4 uses: actions/upload-artifact@v3
with: with:
name: node-native-linux-${{ matrix.config.arch }} name: native-linux
path: | path: |
node/dist/lancedb-vectordb-linux*.tgz 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: node-windows:
runs-on: windows-2022 runs-on: windows-2022
# Only runs on tags that matches the make-release action # Only runs on tags that matches the make-release action
@@ -199,7 +102,7 @@ jobs:
target: [x86_64-pc-windows-msvc] target: [x86_64-pc-windows-msvc]
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v3
- name: Install Protoc v21.12 - name: Install Protoc v21.12
working-directory: C:\ working-directory: C:\
run: | run: |
@@ -216,60 +119,25 @@ jobs:
- name: Build Windows native node modules - name: Build Windows native node modules
run: .\ci\build_windows_artifacts.ps1 ${{ matrix.target }} run: .\ci\build_windows_artifacts.ps1 ${{ matrix.target }}
- name: Upload Windows Artifacts - name: Upload Windows Artifacts
uses: actions/upload-artifact@v4 uses: actions/upload-artifact@v3
with: with:
name: node-native-windows name: native-windows
path: | path: |
node/dist/lancedb-vectordb-win32*.tgz 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: release:
needs: [node, node-macos, node-linux, node-windows] needs: [node, node-macos, node-linux, node-windows]
runs-on: ubuntu-latest runs-on: ubuntu-latest
# Only runs on tags that matches the make-release action # Only runs on tags that matches the make-release action
if: startsWith(github.ref, 'refs/tags/v') if: startsWith(github.ref, 'refs/tags/v')
steps: steps:
- uses: actions/download-artifact@v4 - uses: actions/download-artifact@v3
with:
pattern: node-*
- name: Display structure of downloaded files - name: Display structure of downloaded files
run: ls -R run: ls -R
- uses: actions/setup-node@v3 - uses: actions/setup-node@v3
with: with:
node-version: 20 node-version: 20
registry-url: "https://registry.npmjs.org" registry-url: 'https://registry.npmjs.org'
- name: Publish to NPM - name: Publish to NPM
env: env:
NODE_AUTH_TOKEN: ${{ secrets.LANCEDB_NPM_REGISTRY_TOKEN }} NODE_AUTH_TOKEN: ${{ secrets.LANCEDB_NPM_REGISTRY_TOKEN }}
@@ -279,51 +147,12 @@ jobs:
npm publish $filename npm publish $filename
done 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 }}
run: npm publish --access public
update-package-lock: update-package-lock:
needs: [release] needs: [release]
runs-on: ubuntu-latest runs-on: ubuntu-latest
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v3
with: with:
ref: main ref: main
persist-credentials: false persist-credentials: false
@@ -332,18 +161,3 @@ jobs:
- uses: ./.github/workflows/update_package_lock - uses: ./.github/workflows/update_package_lock
with: with:
github_token: ${{ secrets.LANCEDB_RELEASE_TOKEN }} github_token: ${{ secrets.LANCEDB_RELEASE_TOKEN }}
update-package-lock-nodejs:
needs: [release-nodejs]
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

@@ -5,105 +5,27 @@ on:
types: [ published ] types: [ published ]
jobs: jobs:
linux: publish:
runs-on: ubuntu-latest
# Only runs on tags that matches the python-make-release action # Only runs on tags that matches the python-make-release action
if: startsWith(github.ref, 'refs/tags/python-v') if: startsWith(github.ref, 'refs/tags/python-v')
name: Python ${{ matrix.config.platform }} manylinux${{ matrix.config.manylinux }} defaults:
timeout-minutes: 60 run:
strategy: shell: bash
matrix: working-directory: python
python-minor-version: ["8"]
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: steps:
- uses: actions/checkout@v4 - uses: actions/checkout@v3
with:
fetch-depth: 0
lfs: true
- name: Set up Python - name: Set up Python
uses: actions/setup-python@v4 uses: actions/setup-python@v4
with: with:
python-version: 3.${{ matrix.python-minor-version }} python-version: "3.8"
- uses: ./.github/workflows/build_linux_wheel - name: Build distribution
run: |
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: with:
python-minor-version: ${{ matrix.python-minor-version }} password: ${{ secrets.LANCEDB_PYPI_API_TOKEN }}
args: "--release --strip ${{ matrix.config.extra_args }}" packages-dir: python/dist
arm-build: ${{ matrix.config.platform == 'aarch64' }}
manylinux: ${{ matrix.config.manylinux }}
- uses: ./.github/workflows/upload_wheel
with:
token: ${{ secrets.LANCEDB_PYPI_API_TOKEN }}
repo: "pypi"
mac:
# Only runs on tags that matches the python-make-release action
if: startsWith(github.ref, 'refs/tags/python-v')
timeout-minutes: 60
runs-on: ${{ matrix.config.runner }}
strategy:
matrix:
python-minor-version: ["8"]
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:
ref: ${{ inputs.ref }}
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: ${{ matrix.python-minor-version }}
args: "--release --strip --target ${{ matrix.config.target }} --features fp16kernels"
- uses: ./.github/workflows/upload_wheel
with:
python-minor-version: ${{ matrix.python-minor-version }}
token: ${{ secrets.LANCEDB_PYPI_API_TOKEN }}
repo: "pypi"
windows:
# Only runs on tags that matches the python-make-release action
if: startsWith(github.ref, 'refs/tags/python-v')
timeout-minutes: 60
runs-on: windows-latest
strategy:
matrix:
python-minor-version: ["8"]
steps:
- uses: actions/checkout@v4
with:
ref: ${{ inputs.ref }}
fetch-depth: 0
lfs: true
- name: Set up Python
uses: actions/setup-python@v4
with:
python-version: 3.${{ matrix.python-minor-version }}
- uses: ./.github/workflows/build_windows_wheel
with:
python-minor-version: ${{ matrix.python-minor-version }}
args: "--release --strip"
vcpkg_token: ${{ secrets.VCPKG_GITHUB_PACKAGES }}
- uses: ./.github/workflows/upload_wheel
with:
python-minor-version: ${{ matrix.python-minor-version }}
token: ${{ secrets.LANCEDB_PYPI_API_TOKEN }}
repo: "pypi"

View File

@@ -26,7 +26,7 @@ jobs:
runs-on: ubuntu-latest runs-on: ubuntu-latest
steps: steps:
- name: Check out main - name: Check out main
uses: actions/checkout@v4 uses: actions/checkout@v3
with: with:
ref: main ref: main
persist-credentials: false persist-credentials: false
@@ -37,10 +37,10 @@ jobs:
run: | run: |
git config user.name 'Lance Release' git config user.name 'Lance Release'
git config user.email 'lance-dev@lancedb.com' git config user.email 'lance-dev@lancedb.com'
- name: Set up Python - name: Set up Python 3.10
uses: actions/setup-python@v5 uses: actions/setup-python@v4
with: with:
python-version: "3.11" python-version: "3.10"
- name: Bump version, create tag and commit - name: Bump version, create tag and commit
working-directory: python working-directory: python
run: | run: |

View File

@@ -14,158 +14,62 @@ concurrency:
cancel-in-progress: true cancel-in-progress: true
jobs: 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 -e .[tests,dev,embeddings]
pip install tantivy
pip install mlx
- name: Doctest
run: pytest --doctest-modules python/lancedb
linux: linux:
name: "Linux: python-3.${{ matrix.python-minor-version }}"
timeout-minutes: 30 timeout-minutes: 30
strategy: strategy:
matrix: matrix:
python-minor-version: ["8", "11"] python-minor-version: [ "8", "9", "10", "11" ]
runs-on: "ubuntu-22.04" runs-on: "ubuntu-22.04"
defaults: defaults:
run: run:
shell: bash shell: bash
working-directory: python working-directory: python
steps: steps:
- uses: actions/checkout@v4 - uses: actions/checkout@v3
with: with:
fetch-depth: 0 fetch-depth: 0
lfs: true lfs: true
- name: Install protobuf
run: |
sudo apt update
sudo apt install -y protobuf-compiler
- name: Set up Python - name: Set up Python
uses: actions/setup-python@v5 uses: actions/setup-python@v4
with: with:
python-version: 3.${{ matrix.python-minor-version }} python-version: 3.${{ matrix.python-minor-version }}
- uses: Swatinem/rust-cache@v2 - name: Install lancedb
with: run: |
workspaces: python pip install -e .[tests]
- uses: ./.github/workflows/build_linux_wheel pip install tantivy@git+https://github.com/quickwit-oss/tantivy-py#164adc87e1a033117001cf70e38c82a53014d985
- uses: ./.github/workflows/run_tests pip install pytest pytest-mock ruff
with: - name: Lint
integration: true run: ruff format --check .
# Make sure wheels are not included in the Rust cache - name: Run tests
- name: Delete wheels run: pytest -m "not slow" -x -v --durations=30 tests
run: rm -rf target/wheels - name: doctest
platform: run: pytest --doctest-modules lancedb
name: "Mac: ${{ matrix.config.name }}" mac:
timeout-minutes: 30 timeout-minutes: 30
strategy: strategy:
matrix: matrix:
config: mac-runner: [ "macos-13", "macos-13-xlarge" ]
- name: x86 runs-on: "${{ matrix.mac-runner }}"
runner: macos-13
- name: Arm
runner: macos-14
runs-on: "${{ matrix.config.runner }}"
defaults: defaults:
run: run:
shell: bash shell: bash
working-directory: python working-directory: python
steps: steps:
- uses: actions/checkout@v4 - uses: actions/checkout@v3
with: with:
fetch-depth: 0 fetch-depth: 0
lfs: true lfs: true
- name: Set up Python - name: Set up Python
uses: actions/setup-python@v5 uses: actions/setup-python@v4
with: with:
python-version: "3.11" python-version: "3.11"
- uses: Swatinem/rust-cache@v2 - name: Install lancedb
with: run: |
workspaces: python pip install -e .[tests]
- uses: ./.github/workflows/build_mac_wheel pip install tantivy@git+https://github.com/quickwit-oss/tantivy-py#164adc87e1a033117001cf70e38c82a53014d985
- uses: ./.github/workflows/run_tests pip install pytest pytest-mock black
# Make sure wheels are not included in the Rust cache - name: Run tests
- name: Delete wheels run: pytest -m "not slow" -x -v --durations=30 tests
run: rm -rf target/wheels
windows:
name: "Windows: ${{ matrix.config.name }}"
timeout-minutes: 30
strategy:
matrix:
config:
- name: x86
runner: windows-latest
runs-on: "${{ 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_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
pydantic1x: pydantic1x:
timeout-minutes: 30 timeout-minutes: 30
runs-on: "ubuntu-22.04" runs-on: "ubuntu-22.04"
@@ -174,22 +78,25 @@ jobs:
shell: bash shell: bash
working-directory: python working-directory: python
steps: steps:
- uses: actions/checkout@v4 - uses: actions/checkout@v3
with: with:
fetch-depth: 0 fetch-depth: 0
lfs: true lfs: true
- name: Install dependencies
run: |
sudo apt update
sudo apt install -y protobuf-compiler
- name: Set up Python - name: Set up Python
uses: actions/setup-python@v5 uses: actions/setup-python@v4
with: with:
python-version: 3.9 python-version: 3.9
- name: Install lancedb - name: Install lancedb
run: | run: |
pip install "pydantic<2" pip install "pydantic<2"
pip install -e .[tests] pip install -e .[tests]
pip install tantivy pip install tantivy@git+https://github.com/quickwit-oss/tantivy-py#164adc87e1a033117001cf70e38c82a53014d985
pip install pytest pytest-mock black isort
- name: Black
run: black --check --diff --no-color --quiet .
- name: isort
run: isort --check --diff --quiet .
- name: Run tests - name: Run tests
run: pytest -m "not slow and not s3_test" -x -v --durations=30 python/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 $(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

@@ -24,33 +24,6 @@ env:
RUST_BACKTRACE: "1" RUST_BACKTRACE: "1"
jobs: jobs:
lint:
timeout-minutes: 30
runs-on: ubuntu-22.04
defaults:
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
with:
fetch-depth: 0
lfs: true
- uses: Swatinem/rust-cache@v2
with:
workspaces: rust
- name: Install dependencies
run: |
sudo apt update
sudo apt install -y protobuf-compiler libssl-dev
- name: Run format
run: cargo fmt --all -- --check
- name: Run clippy
run: cargo clippy --all --all-features -- -D warnings
linux: linux:
timeout-minutes: 30 timeout-minutes: 30
runs-on: ubuntu-22.04 runs-on: ubuntu-22.04
@@ -58,12 +31,8 @@ jobs:
run: run:
shell: bash shell: bash
working-directory: rust working-directory: rust
env:
# Need up-to-date compilers for kernels
CC: gcc-12
CXX: g++-12
steps: steps:
- uses: actions/checkout@v4 - uses: actions/checkout@v3
with: with:
fetch-depth: 0 fetch-depth: 0
lfs: true lfs: true
@@ -76,25 +45,20 @@ jobs:
sudo apt install -y protobuf-compiler libssl-dev sudo apt install -y protobuf-compiler libssl-dev
- name: Build - name: Build
run: cargo build --all-features run: cargo build --all-features
- name: Start S3 integration test environment
working-directory: .
run: docker compose up --detach --wait
- name: Run tests - name: Run tests
run: cargo test --all-features run: cargo test --all-features
- name: Run examples
run: cargo run --example simple
macos: macos:
timeout-minutes: 30 timeout-minutes: 30
strategy: strategy:
matrix: matrix:
mac-runner: [ "macos-13", "macos-14" ] mac-runner: [ "macos-13", "macos-13-xlarge" ]
runs-on: "${{ matrix.mac-runner }}" runs-on: "${{ matrix.mac-runner }}"
defaults: defaults:
run: run:
shell: bash shell: bash
working-directory: rust working-directory: rust
steps: steps:
- uses: actions/checkout@v4 - uses: actions/checkout@v3
with: with:
fetch-depth: 0 fetch-depth: 0
lfs: true lfs: true
@@ -108,12 +72,11 @@ jobs:
- name: Build - name: Build
run: cargo build --all-features run: cargo build --all-features
- name: Run tests - name: Run tests
# Run with everything except the integration tests. run: cargo test --all-features
run: cargo test --features remote,fp16kernels
windows: windows:
runs-on: windows-2022 runs-on: windows-2022
steps: steps:
- uses: actions/checkout@v4 - uses: actions/checkout@v3
- uses: Swatinem/rust-cache@v2 - uses: Swatinem/rust-cache@v2
with: with:
workspaces: rust workspaces: rust
@@ -131,4 +94,3 @@ jobs:
$env:VCPKG_ROOT = $env:VCPKG_INSTALLATION_ROOT $env:VCPKG_ROOT = $env:VCPKG_INSTALLATION_ROOT
cargo build cargo build
cargo test 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 runs-on: ubuntu-latest
steps: steps:
- name: Checkout - name: Checkout
uses: actions/checkout@v4 uses: actions/checkout@v3
with: with:
ref: main ref: main
persist-credentials: false 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

@@ -1,29 +0,0 @@
name: upload-wheel
description: "Upload wheels to Pypi"
inputs:
os:
required: true
description: "ubuntu-22.04 or macos-13"
repo:
required: false
description: "pypi or testpypi"
default: "pypi"
token:
required: true
description: "release token for the repo"
runs:
using: "composite"
steps:
- name: Install dependencies
shell: bash
run: |
python -m pip install --upgrade pip
pip install twine
- name: Publish wheel
env:
TWINE_USERNAME: __token__
TWINE_PASSWORD: ${{ inputs.token }}
shell: bash
run: twine upload --repository ${{ inputs.repo }} target/wheels/lancedb-*.whl

9
.gitignore vendored
View File

@@ -22,11 +22,6 @@ python/dist
**/.hypothesis **/.hypothesis
# Compiled Dynamic libraries
*.so
*.dylib
*.dll
## Javascript ## Javascript
*.node *.node
**/node_modules **/node_modules
@@ -34,12 +29,8 @@ python/dist
node/dist node/dist
node/examples/**/package-lock.json node/examples/**/package-lock.json
node/examples/**/dist node/examples/**/dist
nodejs/lancedb/native*
dist
## Rust ## Rust
target target
**/sccache.log
Cargo.lock Cargo.lock

View File

@@ -5,14 +5,17 @@ repos:
- id: check-yaml - id: check-yaml
- id: end-of-file-fixer - id: end-of-file-fixer
- id: trailing-whitespace - 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 - repo: https://github.com/astral-sh/ruff-pre-commit
# Ruff version. # Ruff version.
rev: v0.2.2 rev: v0.0.277
hooks: hooks:
- id: ruff - id: ruff
- repo: https://github.com/pre-commit/mirrors-prettier - repo: https://github.com/pycqa/isort
rev: v3.1.0 rev: 5.12.0
hooks: hooks:
- id: prettier - id: isort
files: "nodejs/.*" name: isort (python)
exclude: nodejs/lancedb/native.d.ts|nodejs/dist/.*

View File

@@ -1,43 +1,28 @@
[workspace] [workspace]
members = ["rust/ffi/node", "rust/lancedb", "nodejs", "python"] members = ["rust/ffi/node", "rust/vectordb"]
# Python package needs to be built by maturin. # Python package needs to be built by maturin.
exclude = ["python"] exclude = ["python"]
resolver = "2" 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] [workspace.dependencies]
lance = { "version" = "=0.10.16", "features" = ["dynamodb"] } lance = { "version" = "=0.8.17", "features" = ["dynamodb"] }
lance-index = { "version" = "=0.10.16" } lance-index = { "version" = "=0.8.17" }
lance-linalg = { "version" = "=0.10.16" } lance-linalg = { "version" = "=0.8.17" }
lance-testing = { "version" = "=0.10.16" } lance-testing = { "version" = "=0.8.17" }
# Note that this one does not include pyarrow # Note that this one does not include pyarrow
arrow = { version = "51.0", optional = false } arrow = { version = "47.0.0", optional = false }
arrow-array = "51.0" arrow-array = "47.0"
arrow-data = "51.0" arrow-data = "47.0"
arrow-ipc = "51.0" arrow-ipc = "47.0"
arrow-ord = "51.0" arrow-ord = "47.0"
arrow-schema = "51.0" arrow-schema = "47.0"
arrow-arith = "51.0" arrow-arith = "47.0"
arrow-cast = "51.0" arrow-cast = "47.0"
async-trait = "0" chrono = "0.4.23"
chrono = "0.4.35"
half = { "version" = "=2.3.1", default-features = false, features = [ half = { "version" = "=2.3.1", default-features = false, features = [
"num-traits", "num-traits",
] } ] }
futures = "0"
log = "0.4" log = "0.4"
object_store = "0.9.0" object_store = "0.7.1"
pin-project = "1.0.7"
snafu = "0.7.4" snafu = "0.7.4"
url = "2" url = "2"
num-traits = "0.2"
regex = "1.10"
lazy_static = "1"

View File

@@ -1,15 +1,14 @@
<div align="center"> <div align="center">
<p 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/">Documentation</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> <a href="https://blog.lancedb.com/">Blog</a>
[![Blog](https://img.shields.io/badge/Blog-12100E?style=for-the-badge&logoColor=white)](https://blog.lancedb.com/) <a href="https://discord.gg/zMM32dvNtd">Discord</a>
[![Discord](https://img.shields.io/badge/Discord-%235865F2.svg?style=for-the-badge&logo=discord&logoColor=white)](https://discord.gg/zMM32dvNtd) <a href="https://twitter.com/lancedb">Twitter</a>
[![Twitter](https://img.shields.io/badge/Twitter-%231DA1F2.svg?style=for-the-badge&logo=Twitter&logoColor=white)](https://twitter.com/lancedb)
</p> </p>
@@ -51,19 +50,12 @@ npm install vectordb
const lancedb = require('vectordb'); const lancedb = require('vectordb');
const db = await lancedb.connect('data/sample-lancedb'); const db = await lancedb.connect('data/sample-lancedb');
const table = await db.createTable({ const table = await db.createTable('vectors',
name: 'vectors', [{ id: 1, vector: [0.1, 0.2], item: "foo", price: 10 },
data: [ { id: 2, vector: [1.1, 1.2], item: "bar", price: 50 }])
{ 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 query = table.search([0.1, 0.3]).limit(2);
const results = await query.execute(); 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** **Python**

View File

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

@@ -1,31 +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

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

@@ -16,7 +16,7 @@ unreleased features.
### Building node module and create markdown files ### 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 ### Build docs
From LanceDB repo root: From LanceDB repo root:
@@ -24,21 +24,3 @@ From LanceDB repo root:
Run: `PYTHONPATH=. mkdocs build -f docs/mkdocs.yml` Run: `PYTHONPATH=. mkdocs build -f docs/mkdocs.yml`
If successful, you should see a `docs/site` directory that you can verify locally. 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
```

View File

@@ -1,4 +1,4 @@
site_name: LanceDB site_name: LanceDB Docs
site_url: https://lancedb.github.io/lancedb/ site_url: https://lancedb.github.io/lancedb/
repo_url: https://github.com/lancedb/lancedb repo_url: https://github.com/lancedb/lancedb
edit_uri: https://github.com/lancedb/lancedb/tree/main/docs/src edit_uri: https://github.com/lancedb/lancedb/tree/main/docs/src
@@ -9,30 +9,20 @@ theme:
name: "material" name: "material"
logo: assets/logo.png logo: assets/logo.png
favicon: 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: features:
- content.code.copy - content.code.copy
- content.tabs.link - content.tabs.link
- content.action.edit - content.action.edit
- toc.follow - toc.follow
- toc.integrate
- navigation.top - navigation.top
- navigation.tabs - navigation.tabs
- navigation.tabs.sticky - navigation.tabs.sticky
- navigation.footer - navigation.footer
- navigation.tracking - navigation.tracking
- navigation.instant - navigation.instant
- navigation.indexes
- navigation.expand
icon: icon:
repo: fontawesome/brands/github repo: fontawesome/brands/github
custom_dir: overrides custom_dir: overrides
@@ -44,9 +34,10 @@ plugins:
handlers: handlers:
python: python:
paths: [../python] paths: [../python]
options: selection:
docstring_style: numpy docstring_style: numpy
heading_level: 3 rendering:
heading_level: 4
show_source: true show_source: true
show_symbol_type_in_heading: true show_symbol_type_in_heading: true
show_signature_annotations: true show_signature_annotations: true
@@ -61,181 +52,109 @@ plugins:
markdown_extensions: markdown_extensions:
- admonition - admonition
- footnotes - footnotes
- pymdownx.superfences
- pymdownx.details - pymdownx.details
- pymdownx.highlight: - pymdownx.highlight:
anchor_linenums: true anchor_linenums: true
line_spans: __span line_spans: __span
pygments_lang_class: true pygments_lang_class: true
- pymdownx.inlinehilite - pymdownx.inlinehilite
- pymdownx.snippets: - pymdownx.snippets
base_path: ..
dedent_subsections: true
- pymdownx.superfences - pymdownx.superfences
- pymdownx.tabbed: - pymdownx.tabbed:
alternate_style: true alternate_style: true
- md_in_html - md_in_html
- attr_list
nav: nav:
- Home: - Home:
- LanceDB: index.md - 🏢 Home: index.md
- 🏃🏼‍♂️ Quick start: basic.md - 💡 Basics: basic.md
- 📚 Concepts: - 📚 Guides:
- Vector search: concepts/vector_search.md - Create Ingest Update Delete: guides/tables.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 - Vector Search: search.md
- Full-text search: fts.md - SQL filters: sql.md
- Hybrid search: - Indexing: ann_indexes.md
- 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
- OpenAI Reranker: reranking/openai.md
- Building Custom Rerankers: reranking/custom_reranker.md
- Filtering: sql.md
- Versioning & Reproducibility: notebooks/reproducibility.ipynb - Versioning & Reproducibility: notebooks/reproducibility.ipynb
- Configuring Storage: guides/storage.md - 🧬 Embeddings:
- Sync -> Async Migration Guide: migration.md - embeddings/index.md
- 🧬 Managing embeddings: - Ingest Embedding Functions: embeddings/embedding_functions.md
- Overview: embeddings/index.md - Available Functions: embeddings/default_embedding_functions.md
- Embedding functions: embeddings/embedding_functions.md - Create Custom Embedding Functions: embeddings/api.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 🔗: https://python.langchain.com/docs/integrations/vectorstores/lancedb/
- LangChain JS/TS 🔗: https://js.langchain.com/docs/integrations/vectorstores/lancedb
- LlamaIndex 🦙: https://docs.llamaindex.ai/en/stable/examples/vector_stores/LanceDBIndexDemo/
- 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 - 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 - Example - Multi-lingual semantic search: notebooks/multi_lingual_example.ipynb
- Serverless QA Bot with Modal: examples/serverless_qa_bot_with_modal_and_langchain.md - Example - MultiModal CLIP Embeddings: notebooks/DisappearingEmbeddingFunction.ipynb
- 👾 JavaScript: - 🔍 Python full-text search: fts.md
- Overview: examples/examples_js.md - 🔌 Integrations:
- Serverless Website Chatbot: examples/serverless_website_chatbot.md - integrations/index.md
- YouTube Transcript Search: examples/youtube_transcript_bot_with_nodejs.md - Pandas and PyArrow: python/arrow.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/saas-modules.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
- OpenAI Reranker: reranking/openai.md
- Building Custom Rerankers: reranking/custom_reranker.md
- Filtering: sql.md
- Versioning & Reproducibility: notebooks/reproducibility.ipynb
- Configuring Storage: guides/storage.md
- Sync -> Async Migration Guide: migration.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 - DuckDB: python/duckdb.md
- LangChain 🦜️🔗↗: https://python.langchain.com/docs/integrations/vectorstores/lancedb - LangChain 🔗: https://python.langchain.com/en/latest/modules/indexes/vectorstores/examples/lancedb.html
- LangChain.js 🦜️🔗↗: https://js.langchain.com/docs/integrations/vectorstores/lancedb - 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 - LlamaIndex 🦙: https://gpt-index.readthedocs.io/en/latest/examples/vector_stores/LanceDBIndexDemo.html
- Pydantic: python/pydantic.md - Pydantic: python/pydantic.md
- Voxel51: integrations/voxel51.md - Voxel51: integrations/voxel51.md
- PromptTools: integrations/prompttools.md - PromptTools: integrations/prompttools.md
- Examples: - 🐍 Python examples:
- examples/index.md - examples/index.md
- YouTube Transcript Search: notebooks/youtube_transcript_search.ipynb - YouTube Transcript Search: notebooks/youtube_transcript_search.ipynb
- Documentation QA Bot using LangChain: notebooks/code_qa_bot.ipynb - Documentation QA Bot using LangChain: notebooks/code_qa_bot.ipynb
- Multimodal search using CLIP: notebooks/multimodal_search.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 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 - 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 - 🌐 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
- 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 - Serverless Chatbot from any website: examples/serverless_website_chatbot.md
- TransformersJS Embedding Search: examples/transformerjs_embedding_search_nodejs.md - TransformersJS Embedding Search: examples/transformerjs_embedding_search_nodejs.md
- API reference: - API references:
- Overview: api_reference.md - OSS Python API: python/python.md
- Python: python/python.md - SaaS Python API: python/saas-python.md
- Javascript (vectordb): javascript/modules.md - Javascript API: javascript/modules.md
- Javascript (lancedb): js/modules.md - LanceDB Cloud↗: https://noteforms.com/forms/lancedb-mailing-list-cloud-kty1o5?notionforms=1&utm_source=notionforms
- Rust: https://docs.rs/lancedb/latest/lancedb/index.html
- LanceDB Cloud:
- Overview: cloud/index.md
- API reference:
- 🐍 Python: python/saas-python.md
- 👾 JavaScript: javascript/saas-modules.md
extra_css: extra_css:
- styles/global.css - styles/global.css
- styles/extra.css
extra_javascript:
- "extra_js/init_ask_ai_widget.js"
extra: extra:
analytics: analytics:
provider: google provider: google
property: G-B7NFM40W74 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

132
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View File

@@ -1,5 +1,4 @@
mkdocs==1.5.3 mkdocs==1.4.2
mkdocs-jupyter==0.24.1 mkdocs-jupyter==0.24.1
mkdocs-material==9.5.3 mkdocs-material==9.1.3
mkdocstrings[python]==0.20.0 mkdocstrings[python]==0.20.0
pydantic

View File

@@ -1,24 +1,29 @@
# 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 You can create an index over your vector data to make search faster.
search vector data based on their similarity via the chosen distance metric. Vector indexes are faster but less accurate than exhaustive search (KNN or Flat Search).
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).
LanceDB provides many parameters to fine-tune the index's size, the speed of queries, and the accuracy of results. 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 In the future we will look to automatically create and configure the ANN index.
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. ## 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 ## Creating an IVF_PQ Index
Lance supports `IVF_PQ` index type by default. Lance supports `IVF_PQ` index type by default.
=== "Python" === "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 ```python
@@ -38,42 +43,25 @@ Lance supports `IVF_PQ` index type by default.
tbl.create_index(num_partitions=256, num_sub_vectors=96) 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')
```typescript let data = []
--8<--- "docs/src/ann_indexes.ts:import" for (let i = 0; i < 10_000; i++) {
data.push({vector: Array(1536).fill(i), id: `${i}`, content: "", longId: `${i}`},)
--8<-- "docs/src/ann_indexes.ts:ingest" }
const table = await db.createTable('my_vectors', data)
await table.createIndex({ type: 'ivf_pq', column: 'vector', num_partitions: 256, num_sub_vectors: 96 })
``` ```
=== "Rust" - **metric** (default: "L2"): The distance metric to use. By default it uses euclidean distance "`L2`".
```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. We also support "cosine" and "dot" distance as well.
- **num_partitions**: The number of partitions in the index. The default is the square root - **num_partitions** (default: 256): The number of partitions of the index.
of the number of rows. - **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
!!! note a single PQ code.
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`.
<figure markdown> <figure markdown>
![IVF PQ](./assets/ivf_pq.png) ![IVF PQ](./assets/ivf_pq.png)
@@ -87,7 +75,7 @@ Using GPU for index creation requires [PyTorch>2.0](https://pytorch.org/) being
You can specify the GPU device to train IVF partitions via 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" === "Linux"
@@ -101,7 +89,7 @@ You can specify the GPU device to train IVF partitions via
) )
``` ```
=== "MacOS" === "Macos"
<!-- skip-test --> <!-- skip-test -->
```python ```python
@@ -113,11 +101,12 @@ You can specify the GPU device to train IVF partitions via
) )
``` ```
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/). PyTorch with CUDA support](https://pytorch.org/get-started/locally/).
## Querying an ANN Index ## Querying an ANN Index
Querying vector indexes is done via the [search](https://lancedb.github.io/lancedb/python/#lancedb.table.LanceTable.search) function. Querying vector indexes is done via the [search](https://lancedb.github.io/lancedb/python/#lancedb.table.LanceTable.search) function.
@@ -135,7 +124,6 @@ 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. 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"
```python ```python
tbl.search(np.random.random((1536))) \ tbl.search(np.random.random((1536))) \
.limit(2) \ .limit(2) \
@@ -143,43 +131,40 @@ There are a couple of parameters that can be used to fine-tune the search:
.refine_factor(10) \ .refine_factor(10) \
.to_pandas() .to_pandas()
``` ```
```
```text
vector item _distance vector item _distance
0 [0.44949695, 0.8444449, 0.06281311, 0.23338133... item 1141 103.575333 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 1 [0.48587373, 0.269207, 0.15095535, 0.65531915,... item 3953 108.393867
``` ```
=== "Typescript" === "Javascript"
```javascript
```typescript const results_1 = await table
--8<-- "docs/src/ann_indexes.ts:search1" .search(Array(1536).fill(1.2))
.limit(2)
.nprobes(20)
.refineFactor(10)
.execute()
``` ```
=== "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).
The search will return the data requested in addition to the distance of each item. The search will return the data requested in addition to the distance of each item.
### Filtering (where clause) ### Filtering (where clause)
You can further filter the elements returned by a search using a where clause. You can further filter the elements returned by a search using a where clause.
=== "Python" === "Python"
```python ```python
tbl.search(np.random.random((1536))).where("item != 'item 1141'").to_pandas() tbl.search(np.random.random((1536))).where("item != 'item 1141'").to_pandas()
``` ```
=== "Typescript" === "Javascript"
```javascript ```javascript
--8<-- "docs/src/ann_indexes.ts:search2" const results_2 = await table
.search(Array(1536).fill(1.2))
.where("id != '1141'")
.execute()
``` ```
### Projections (select clause) ### Projections (select clause)
@@ -187,42 +172,33 @@ You can further filter the elements returned by a search using a where clause.
You can select the columns returned by the query using a select clause. You can select the columns returned by the query using a select clause.
=== "Python" === "Python"
```python ```python
tbl.search(np.random.random((1536))).select(["vector"]).to_pandas() tbl.search(np.random.random((1536))).select(["vector"]).to_pandas()
``` ```
```
```text
vector _distance vector _distance
0 [0.30928212, 0.022668175, 0.1756372, 0.4911822... 93.971092 0 [0.30928212, 0.022668175, 0.1756372, 0.4911822... 93.971092
1 [0.2525465, 0.01723831, 0.261568, 0.002007689,... 95.173485 1 [0.2525465, 0.01723831, 0.261568, 0.002007689,... 95.173485
... ...
``` ```
=== "Typescript" === "Javascript"
```javascript
```typescript const results_3 = await table
--8<-- "docs/src/ann_indexes.ts:search3" .search(Array(1536).fill(1.2))
.select(["id"])
.execute()
``` ```
## FAQ ## 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? ### 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. `LanceDB` has manually-tuned SIMD code for computing vector distances.
In our benchmarks, computing distances for 100K pairs of 1K dimension vectors takes **less than 20ms**. In our benchmarks, computing 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, For small datasets (< 100K rows) or applications that can accept 100ms latency, vector indices are usually not necessary.
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? ### How big is my index, and how many memory will it take?

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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# 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) ??? info "LanceDB runs embedded on your backend application, so there is no need to run a separate server."
* Directly from a client application like a Jupyter notebook for analytical workloads
* Deployed as a remote serverless database
![](assets/lancedb_embedded_explanation.png) <img src="../assets/lancedb_embedded_explanation.png" width="650px" />
## Installation ## Installation
=== "Python" === "Python"
```shell ```shell
pip install lancedb pip install lancedb
``` ```
=== "Typescript" === "Javascript"
```shell ```shell
npm install vectordb npm install vectordb
``` ```
=== "Rust" ## How to connect to a database
```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)"
## Connect to a database
=== "Python" === "Python"
```python ```python
--8<-- "python/python/tests/docs/test_basic.py:imports" import lancedb
--8<-- "python/python/tests/docs/test_basic.py:connect" uri = "data/sample-lancedb"
db = lancedb.connect(uri)
--8<-- "python/python/tests/docs/test_basic.py:connect_async"
``` ```
!!! note "Asynchronous Python API" LanceDB will create the directory if it doesn't exist (including parent directories).
The asynchronous Python API is new and has some slight differences compared If you need a reminder of the uri, use the `db.uri` property.
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.
=== "Typescript" === "Javascript"
```javascript
const lancedb = require("vectordb");
```typescript const uri = "data/sample-lancedb";
--8<-- "docs/src/basic_legacy.ts:import" const db = await lancedb.connect(uri);
--8<-- "docs/src/basic_legacy.ts:open_db"
``` ```
!!! note "`@lancedb/lancedb` vs. `vectordb`"
The Javascript SDK was originally released as `vectordb`. In an effort to
reduce maintenance we are aligning our SDKs. The new, aligned, Javascript
API is being released as `lancedb`. If you are starting new work we encourage
you to try out `lancedb`. Once the new API is feature complete we will begin
slowly deprecating `vectordb` in favor of `lancedb`. There is a
[migration guide](migration.md) detailing the differences which will assist
you in this process.
=== "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). 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()`. If you need a reminder of the uri, you can call `db.uri()`.
## Create a table ## How to 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.
=== "Python" === "Python"
```python ```python
--8<-- "python/python/tests/docs/test_basic.py:create_table" tbl = db.create_table("my_table",
--8<-- "python/python/tests/docs/test_basic.py:create_table_async" data=[{"vector": [3.1, 4.1], "item": "foo", "price": 10.0},
{"vector": [5.9, 26.5], "item": "bar", "price": 20.0}])
``` ```
If the table already exists, LanceDB will raise an error by default. If the table already exists, LanceDB will raise an error by default.
@@ -116,227 +57,125 @@ table.
to the `create_table` method. to the `create_table` method.
You can also pass in a pandas DataFrame directly: You can also pass in a pandas DataFrame directly:
```python ```python
--8<-- "python/python/tests/docs/test_basic.py:create_table_pandas" import pandas as pd
--8<-- "python/python/tests/docs/test_basic.py:create_table_async_pandas" 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)
``` ```
=== "Typescript" === "Javascript"
```javascript
```typescript const tb = await db.createTable("my_table",
--8<-- "docs/src/basic_legacy.ts:create_table" data=[{"vector": [3.1, 4.1], "item": "foo", "price": 10.0},
{"vector": [5.9, 26.5], "item": "bar", "price": 20.0}])
``` ```
!!! warning
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"` If you want to overwrite the table, you can pass in `mode="overwrite"`
to the `createTable` function. to the `createTable` function.
=== "Rust" ??? 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)."
```rust ### Creating an empty table
--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)."
### Create an empty table
Sometimes you may not have the data to insert into the table at creation time. 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 In this case, you can create an empty table and specify the schema.
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.
=== "Python" === "Python"
```python ```python
--8<-- "python/python/tests/docs/test_basic.py:create_empty_table" import pyarrow as pa
--8<-- "python/python/tests/docs/test_basic.py:create_empty_table_async" schema = pa.schema([pa.field("vector", pa.list_(pa.float32(), list_size=2))])
tbl = db.create_table("empty_table", schema=schema)
``` ```
=== "Typescript" ## How to open an existing table
```typescript Once created, you can open a table using the following code:
--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:
=== "Python" === "Python"
```python ```python
--8<-- "python/python/tests/docs/test_basic.py:open_table" tbl = db.open_table("my_table")
--8<-- "python/python/tests/docs/test_basic.py:open_table_async"
```
=== "Typescript"
```typescript
const tbl = await db.openTable("myTable");
```
=== "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: If you forget the name of your table, you can always get a listing of all table names:
=== "Python"
```python ```python
--8<-- "python/python/tests/docs/test_basic.py:table_names" print(db.table_names())
--8<-- "python/python/tests/docs/test_basic.py:table_names_async"
``` ```
=== "Javascript" === "Javascript"
```javascript
const tbl = await db.openTable("my_table");
```
If you forget the name of your table, you can always get a listing of all table names:
```javascript ```javascript
console.log(await db.tableNames()); console.log(await db.tableNames());
``` ```
=== "Rust" ## How to add data to a table
```rust After a table has been created, you can always add more data to it using
--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:
=== "Python" === "Python"
```python ```python
--8<-- "python/python/tests/docs/test_basic.py:add_data"
--8<-- "python/python/tests/docs/test_basic.py:add_data_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)
# Option 2: Add a pandas DataFrame to a table
df = pd.DataFrame(data)
tbl.add(data)
``` ```
=== "Typescript" === "Javascript"
```javascript
```typescript await tbl.add([{vector: [1.3, 1.4], item: "fizz", price: 100.0},
--8<-- "docs/src/basic_legacy.ts:add" {vector: [9.5, 56.2], item: "buzz", price: 200.0}])
``` ```
=== "Rust" ## How to search for (approximate) nearest neighbors
```rust Once you've embedded the query, you can find its nearest neighbors using the following code:
--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"
```python ```python
--8<-- "python/python/tests/docs/test_basic.py:vector_search" tbl.search([100, 100]).limit(2).to_pandas()
--8<-- "python/python/tests/docs/test_basic.py:vector_search_async"
``` ```
This returns a pandas DataFrame with the results. This returns a pandas DataFrame with the results.
=== "Typescript" === "Javascript"
```javascript
```typescript const query = await tbl.search([100, 100]).limit(2).execute();
--8<-- "docs/src/basic_legacy.ts:search"
``` ```
=== "Rust" ## How to delete rows from a table
```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"
```{.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
Use the `delete()` method on tables to delete rows from a table. To choose 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. which rows to delete, provide a filter that matches on the metadata columns.
This can delete any number of rows that match the filter. This can delete any number of rows that match the filter.
=== "Python" === "Python"
```python ```python
--8<-- "python/python/tests/docs/test_basic.py:delete_rows" tbl.delete('item = "fizz"')
--8<-- "python/python/tests/docs/test_basic.py:delete_rows_async"
``` ```
=== "Typescript" === "Javascript"
```javascript
```typescript await tbl.delete('item = "fizz"')
--8<-- "docs/src/basic_legacy.ts:delete"
```
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/simple.rs:delete"
``` ```
The deletion predicate is a SQL expression that supports the same expressions 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 as the `where()` clause on a search. They can be as simple or complex as needed.
simple or complex as needed. To see what expressions are supported, see the To see what expressions are supported, see the [SQL filters](sql.md) section.
[SQL filters](sql.md) section.
=== "Python" === "Python"
@@ -346,44 +185,28 @@ simple or complex as needed. To see what expressions are supported, see the
Read more: [vectordb.Table.delete](javascript/interfaces/Table.md#delete) Read more: [vectordb.Table.delete](javascript/interfaces/Table.md#delete)
=== "Rust" ## How to remove a table
Read more: [lancedb::Table::delete](https://docs.rs/lancedb/latest/lancedb/table/struct.Table.html#method.delete)
## Drop a table
Use the `drop_table()` method on the database to remove a table. Use the `drop_table()` method on the database to remove a table.
=== "Python" === "Python"
```python ```python
--8<-- "python/python/tests/docs/test_basic.py:drop_table" db.drop_table("my_table")
--8<-- "python/python/tests/docs/test_basic.py:drop_table_async"
``` ```
This permanently removes the table and is not recoverable, unlike deleting rows. 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, By default, if the table does not exist an exception is raised. To suppress this,
you can pass in `ignore_missing=True`. you can pass in `ignore_missing=True`.
=== "Typescript"
```typescript ## What's next
--8<-- "docs/src/basic_legacy.ts:drop_table"
```
This permanently removes the table and is not recoverable, unlike deleting rows. This section covered the very basics of the LanceDB API.
If the table does not exist an exception is raised. 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.
=== "Rust"
```rust
--8<-- "rust/lancedb/examples/simple.rs:drop_table"
```
!!! note "Bundling `vectordb` apps with Webpack"
If you're using the `vectordb` module in JavaScript, 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.
## 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 ```javascript
/** @type {import('next').NextConfig} */ /** @type {import('next').NextConfig} */
module.exports = ({ module.exports = ({
@@ -393,9 +216,3 @@ Use the `drop_table()` method on the database to remove a table.
} }
}) })
``` ```
## 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.
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.

View File

@@ -1,92 +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
View File

@@ -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
```

View File

@@ -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.

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.

View File

@@ -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.

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@@ -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.

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@@ -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 1. Create your embedding function by implementing the `EmbeddingFunction` interface
2. Register your embedding function in the global `EmbeddingFunctionRegistry`. 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) ![](../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` 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 ```python
from lancedb.embeddings import register from lancedb.embeddings import register
from lancedb.util import attempt_import_or_raise
@register("sentence-transformers") @register("sentence-transformers")
class SentenceTransformerEmbeddings(TextEmbeddingFunction): class SentenceTransformerEmbeddings(TextEmbeddingFunction):
@@ -39,6 +39,7 @@ class SentenceTransformerEmbeddings(TextEmbeddingFunction):
@cached(cache={}) @cached(cache={})
def _embedding_model(self): def _embedding_model(self):
return sentence_transformers.SentenceTransformer(name) return sentence_transformers.SentenceTransformer(name)
``` ```
This is a stripped down version of our implementation of `SentenceTransformerEmbeddings` that removes certain optimizations and defaul settings. 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): def __init__(self, *args, **kwargs):
super().__init__(*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( model, _, preprocess = open_clip.create_model_and_transforms(
self.name, pretrained=self.pretrained self.name, pretrained=self.pretrained
) )
@@ -110,14 +111,14 @@ class OpenClipEmbeddings(EmbeddingFunction):
if isinstance(query, str): if isinstance(query, str):
return [self.generate_text_embeddings(query)] return [self.generate_text_embeddings(query)]
else: else:
PIL = attempt_import_or_raise("PIL", "pillow") PIL = self.safe_import("PIL", "pillow")
if isinstance(query, PIL.Image.Image): if isinstance(query, PIL.Image.Image):
return [self.generate_image_embedding(query)] return [self.generate_image_embedding(query)]
else: else:
raise TypeError("OpenClip supports str or PIL Image as query") raise TypeError("OpenClip supports str or PIL Image as query")
def generate_text_embeddings(self, text: str) -> np.ndarray: 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.sanitize_input(text)
text = self._tokenizer(text) text = self._tokenizer(text)
text.to(self.device) 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. 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. 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 # TODO handle retry and errors for https
image = self._to_pil(image) image = self._to_pil(image)
image = self._preprocess(image).unsqueeze(0) image = self._preprocess(image).unsqueeze(0)
@@ -184,7 +185,7 @@ class OpenClipEmbeddings(EmbeddingFunction):
return self._encode_and_normalize_image(image) return self._encode_and_normalize_image(image)
def _to_pil(self, image: Union[str, bytes]): 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): if isinstance(image, bytes):
return PIL.Image.open(io.BytesIO(image)) return PIL.Image.open(io.BytesIO(image))
if isinstance(image, PIL.Image.Image): if isinstance(image, PIL.Image.Image):

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@@ -1,174 +1,33 @@
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 ## Text Embedding Functions
Contains the text embedding functions registered by default. Here are the text embedding functions registered by default.
Embedding functions have 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 deafult value of 7.
* Embedding functions have an inbuilt rate limit handler wrapper for source and query embedding function calls that retry with exponential backoff. ### Sentence Transformers
* Each `EmbeddingFunction` implementation automatically takes `max_retries` as an argument which has the default value of 7. Here are the parameters that you can set when registering a `sentence-transformers` object, and their default values:
### 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.
| Parameter | Type | Default Value | Description | | Parameter | Type | Default Value | Description |
|---|---|---|---| |---|---|---|---|
| `name` | `str` | `all-MiniLM-L6-v2` | The name of 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`) | | `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 | | `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 ```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
db = lancedb.connect("/tmp/db") db = lancedb.connect("/tmp/db")
model = get_registry().get("sentence-transformers").create(name="BAAI/bge-small-en-v1.5", device="cpu") registry = EmbeddingFunctionRegistry.get_instance()
func = registry.get("sentence-transformers").create(device="cpu")
class Words(LanceModel): class Words(LanceModel):
text: str = model.SourceField() text: str = func.SourceField()
vector: Vector(model.ndims()) = model.VectorField() vector: Vector(func.ndims()) = func.VectorField()
table = db.create_table("words", schema=Words) table = db.create_table("words", schema=Words)
table.add( table.add(
[ [
{"text": "hello world"}, {"text": "hello world"}
{"text": "goodbye world"} {"text": "goodbye world"}
] ]
) )
@@ -177,60 +36,29 @@ Allows you to set parameters when registering a `sentence-transformers` object.
actual = table.search(query).limit(1).to_pydantic(Words)[0] actual = table.search(query).limit(1).to_pydantic(Words)[0]
print(actual.text) print(actual.text)
``` ```
Visit sentence-transformers [HuggingFace HUB](https://huggingface.co/sentence-transformers) page for more information on the available models.
### OpenAIEmbeddings
### Huggingface embedding models 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
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 TextModel(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()
query = "old greeting"
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:
| Parameter | Type | Default Value | Description | | Parameter | Type | Default Value | Description |
|---|---|---|---| |---|---|---|---|
| `name` | `str` | `"text-embedding-ada-002"` | The name of the model. | | `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 ```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
db = lancedb.connect("/tmp/db") 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): class Words(LanceModel):
text: str = func.SourceField() text: str = func.SourceField()
vector: Vector(func.ndims()) = func.VectorField() vector: Vector(func.ndims()) = func.VectorField()
table = db.create_table("words", schema=Words, mode="overwrite") table = db.create_table("words", schema=Words)
table.add( table.add(
[ [
{"text": "hello world"}, {"text": "hello world"}
{"text": "goodbye world"} {"text": "goodbye world"}
] ]
) )
@@ -241,18 +69,17 @@ print(actual.text)
``` ```
### Instructor Embeddings ### 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. * `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. * `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. * `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 | | Argument | Type | Default | Description |
|---|---|---|---| |---|---|---|---|
@@ -291,97 +118,12 @@ texts = [{"text": "Capitalism has been dominant in the Western world since the e
tbl.add(texts) 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()
```
### 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
Multi-modal embedding functions allow you to query your table using both images and text. Multi-modal embedding functions allow you query your table using both images and text.
### OpenClipEmbeddings
We support CLIP model embeddings using the open souce alternbative, open-clip which support various customizations. It is registered as `open-clip` and supports following customizations.
### 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:
| Parameter | Type | Default Value | Description | | Parameter | Type | Default Value | Description |
|---|---|---|---| |---|---|---|---|
@@ -391,18 +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. | | `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. | | `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. This embedding function supports ingesting images as both bytes and urls. You can query them using both test and other images.
!!! info NOTE:
LanceDB supports ingesting images directly from accessible links. LanceDB supports ingesting images directly from accessible links.
```python ```python
import lancedb
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
db = lancedb.connect(tmp_path) 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): class Images(LanceModel):
label: str label: str
@@ -463,70 +205,4 @@ print(actual.label)
``` ```
### Imagebind embeddings If you have any questions about the embeddings API, supported models, or see a relevant model missing, please raise an issue.
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).

View File

@@ -1,152 +1,79 @@
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. 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.
!!! 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.
## 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" ### Step 1 - Define the embedding function
In the LanceDB python SDK, we define a global embedding function registry with 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.
many different embedding models and even more coming soon. ```
Here's let's an implementation of CLIP as example. registry = EmbeddingFunctionRegistry.get_instance()
```python
from lancedb.embeddings import get_registry
registry = get_registry()
clip = registry.get("open-clip").create() clip = registry.get("open-clip").create()
``` ```
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!
You can also define your own embedding function by implementing the `EmbeddingFunction` ### Step 2 - Define the Data Model or Schema
abstract base interface. It subclasses Pydantic Model which can be utilized to write complex schemas simply as we'll see next! 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
=== "JavaScript""
In the TypeScript SDK, the choices are more limited. For now, only the OpenAI
embedding function is available.
```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)
```
## 2. Define the data model or schema
=== "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 ```python
class Pets(LanceModel): class Pets(LanceModel):
vector: Vector(clip.ndims) = clip.VectorField() vector: Vector(clip.ndims) = clip.VectorField()
image_uri: str = clip.SourceField() image_uri: str = clip.SourceField()
``` ```
`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`.
`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`.
=== "JavaScript" ### Step 3 - Create LanceDB Table
Now that we have chosen/defined our embedding function and the schema, we can create the table
For the TypeScript SDK, a schema can be inferred from input data, or an explicit
Arrow schema can be provided.
## 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 ```python
db = lancedb.connect("~/lancedb") db = lancedb.connect("~/lancedb")
table = db.create_table("pets", schema=Pets) table = db.create_table("pets", schema=Pets)
```
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
### Step 4 - Ingest lots of data and run vector search!
Now you can just add the data and it'll be vectorized automatically
```python
table.add([{"image_uri": u} for u in uris]) table.add([{"image_uri": u} for u in uris])
``` ```
=== "JavaScript" Our OpenCLIP query embedding function support querying via both text and images.
```javascript
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 ```python
results = ( result = table.search("dog")
table.search("dog")
.limit(10)
.to_pandas()
)
``` ```
Or we can search using an image: Let's query an image
```python ```python
p = Path("path/to/images/samoyed_100.jpg") p = Path("path/to/images/samoyed_100.jpg")
query_image = Image.open(p) query_image = Image.open(p)
results = (
table.search(query_image) table.search(query_image)
.limit(10)
.to_pandas()
)
``` ```
### Rate limit Handling
Both of the above snippet returns a pandas DataFrame with the 10 closest vectors to the query. `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
=== "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 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:
```python ```python
clip = registry.get("open-clip").create() # Defaults to 7 max retries 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=10) # Increase max retries to 10
clip = registry.get("open-clip").create(max_retries=0) # Retries disabled clip = registry.get("open-clip").create(max_retries=0) # Retries disabled
``` ````
!!! note NOTE:
Embedding functions can also fail due to other errors that have nothing to do with rate limits. 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.
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.
### 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 ```python
class Pets(LanceModel): class Pets(LanceModel):
vector: Vector(clip.ndims) = clip.VectorField() vector: Vector(clip.ndims) = clip.VectorField()
@@ -156,7 +83,7 @@ class Pets(LanceModel):
def image(self): def image(self):
return Image.open(self.image_uri) 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 ```python
rs = table.search(query_image).limit(3).to_pydantic(Pets) rs = table.search(query_image).limit(3).to_pydantic(Pets)
@@ -165,5 +92,4 @@ rs[2].image
![](../assets/dog_clip_output.png) ![](../assets/dog_clip_output.png)
Now that you have the basic idea about LanceDB embedding functions and the embedding function registry, 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!
let's dive deeper into defining your own [custom functions](./custom_embedding_function.md).

View File

@@ -1,74 +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. # Embedding
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.
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. ![](../assets/embedding_intro.png)
2. You can use the built-in [embedding functions](./embedding_functions.md) to embed the data and queries in the background.
3. For python users, you can define your own [custom embedding function](./custom_embedding_function.md)
that extends the default embedding functions.
For python users, there is also a legacy [with_embeddings API](./legacy.md). # Creating an embedding function
It is retained for compatibility and will be removed in a future version.
## 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.
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"`. ## Explicit Vectorization
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.
### HuggingFace example
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 ```python
import lancedb from sentence_transformers import SentenceTransformer
from lancedb.pydantic import LanceModel, Vector
from lancedb.embeddings import get_registry
db = lancedb.connect("/tmp/db") name="paraphrase-albert-small-v2"
func = get_registry().get("openai").create(name="text-embedding-ada-002") model = SentenceTransformer(name)
class Words(LanceModel): # used for both training and querying
text: str = func.SourceField() def embed_func(batch):
vector: Vector(func.ndims()) = func.VectorField() return [model.encode(sentence) for sentence in batch]
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)
``` ```
### Sentence Transformers Embedding function Please note that currently HuggingFace is only supported in the Python SDK.
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"`.
### 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 ```python
import lancedb import pandas as pd
from lancedb.pydantic import LanceModel, Vector from lancedb.embeddings import with_embeddings
from lancedb.embeddings import get_registry
db = lancedb.connect("/tmp/db") df = pd.DataFrame([{"text": "pepperoni"},
model = get_registry().get("sentence-transformers").create(name="BAAI/bge-small-en-v1.5", device="cpu") {"text": "pineapple"}])
data = with_embeddings(embed_func, df)
class Words(LanceModel): # The output is used to create / append to a table
text: str = model.SourceField() # db.create_table("my_table", data=data)
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)
``` ```
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

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@@ -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: 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: 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 ## Projects & Applications powered by LanceDB
* 👾 [JavaScript](examples_js.md) examples
* 🦀 Rust examples (coming soon)
## Applications powered by LanceDB
| Project Name | Description | Screenshot | | 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 | | 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)| | [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)| | [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) | | [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) |

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

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@@ -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";
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@@ -1,87 +0,0 @@
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)

View File

@@ -1,21 +1,26 @@
# Full-text search # [EXPERIMENTAL] 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) 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
A hybrid search solution combining vector and full-text search is also on the way. to make this available for JS as well.
## Installation ## 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 ```sh
# Say you want to use tantivy==0.20.1
pip install 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 ```python
import lancedb import lancedb
@@ -23,41 +28,35 @@ import lancedb
uri = "data/sample-lancedb" uri = "data/sample-lancedb"
db = lancedb.connect(uri) db = lancedb.connect(uri)
table = db.create_table( table = db.create_table("my_table",
"my_table", data=[{"vector": [3.1, 4.1], "text": "Frodo was a happy puppy"},
data=[ {"vector": [5.9, 26.5], "text": "There are several kittens playing"}])
{"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 To create the index:
The FTS index must be created before you can search via keywords.
```python ```python
table.create_fts_index("text") table.create_fts_index("text")
``` ```
To search an FTS index via keywords, LanceDB's `table.search` accepts a string as input: To search:
```python ```python
table.search("puppy").limit(10).select(["text"]).to_list() 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 ```python
[{'text': 'Frodo was a happy puppy', 'score': 0.6931471824645996}] [{'text': 'Frodo was a happy puppy', 'score': 0.6931471824645996}]
``` ```
!!! note LanceDB automatically looks for an FTS index if the input is str.
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.
## Index multiple columns ## Multiple text 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 ```python
table.create_fts_index(["text1", "text2"]) table.create_fts_index(["text1", "text2"])
@@ -65,99 +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. 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 ## Current limitations
1. Currently we do not yet support incremental writes. 1. Currently we do not yet support incremental writes.
If you add data after FTS index creation, it won't be reflected If you add data after fts index creation, it won't be reflected
in search results until you do a full reindex. in search results until you do a full reindex.
2. We currently only support local filesystem paths for the FTS index. 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.

View File

@@ -1,440 +0,0 @@
# 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")
```
=== "JavaScript"
AWS S3:
```javascript
const lancedb = require("lancedb");
const db = await lancedb.connect("s3://bucket/path");
```
Google Cloud Storage:
```javascript
const lancedb = require("lancedb");
const db = await lancedb.connect("gs://bucket/path");
```
Azure Blob Storage:
```javascript
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"}
)
```
=== "JavaScript"
```javascript
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"}
)
```
=== "JavaScript"
<!-- skip-test -->
```javascript
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",
}
)
```
=== "JavaScript"
```javascript
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>/*"
]
}
}
}
]
}
```
#### 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",
}
)
```
=== "JavaScript"
```javascript
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.
#### 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",
}
)
```
=== "JavaScript"
```javascript
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",
}
)
```
=== "JavaScript"
```javascript
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",
}
)
```
=== "JavaScript"
```javascript
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

@@ -1,38 +1,20 @@
<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. You can follow along on colab!
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.
## Creating a LanceDB Table ## Creating a LanceDB Table
=== "Python" === "Python"
Initialize a LanceDB connection and create a table using one of the many methods listed below. ### LanceDB Connection
```python ```python
import lancedb import lancedb
db = lancedb.connect("./.lancedb") db = lancedb.connect("./.lancedb")
``` ```
=== "Javascript"
Initialize a VectorDB connection and create a table using one of the many methods listed below.
```javascript
const lancedb = require("vectordb");
const uri = "data/sample-lancedb";
const db = await lancedb.connect(uri);
```
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. 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.
### From list of tuples or dictionaries ### From list of tuples or dictionaries
=== "Python"
```python ```python
import lancedb import lancedb
@@ -45,46 +27,16 @@ This guide will show how to create tables, insert data into them, and update the
db["my_table"].head() db["my_table"].head()
``` ```
!!! info "Note" !!! 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, exist_ok=True)
```
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.
```python ```python
db.create_table("name", data, mode="overwrite") db.create_table("name", data, mode="overwrite")
``` ```
=== "Javascript"
You can create a LanceDB table in JavaScript using an array of JSON records as follows.
```javascript ### From pandas DataFrame
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 })
```
### From a Pandas DataFrame
```python ```python
import pandas as pd import pandas as pd
@@ -95,15 +47,13 @@ This guide will show how to create tables, insert data into them, and update the
"long": [-122.7, -74.1] "long": [-122.7, -74.1]
}) })
db.create_table("my_table", data) db.create_table("table2", data)
db["my_table"].head() db["table2"].head()
``` ```
!!! info "Note" !!! 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. 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 ```python
custom_schema = pa.schema([ custom_schema = pa.schema([
pa.field("vector", pa.list_(pa.float32(), 4)), pa.field("vector", pa.list_(pa.float32(), 4)),
@@ -111,73 +61,37 @@ This guide will show how to create tables, insert data into them, and update the
pa.field("long", pa.float32()) pa.field("long", pa.float32())
]) ])
table = db.create_table("my_table", data, schema=custom_schema) table = db.create_table("table3", data, schema=custom_schema)
``` ```
### From a Polars DataFrame ### From PyArrow Tables
You can also create LanceDB tables directly from pyarrow tables
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 ```python
import polars as pl table = pa.Table.from_arrays(
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
=== "Python"
You can also create LanceDB tables directly from Arrow tables.
LanceDB supports float16 data type!
```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.array([[3.1, 4.1, 5.1, 6.1], [5.9, 26.5, 4.7, 32.8]],
pa.field("text", pa.string()) pa.list_(pa.float32(), 4)),
] pa.array(["foo", "bar"]),
) pa.array([10.0, 20.0]),
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"], ["vector", "item", "price"],
) )
tbl = db.create_table("f16_tbl", data, schema=schema)
```
=== "Javascript" db = lancedb.connect("db")
You can also create LanceDB tables directly from Arrow tables.
LanceDB supports Float16 data type!
```javascript tbl = db.create_table("test1", table)
--8<-- "docs/src/basic_legacy.ts:create_f16_table"
``` ```
### From Pydantic Models ### From Pydantic Models
When you create an empty table without data, you must specify the table schema. 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 LanceDB supports creating tables by specifying a pyarrow schema or a specialized
Pydantic model called `LanceModel`. pydantic model called `LanceModel`.
For example, the following Content model specifies a table with 5 columns: 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 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`. 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 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 can be configured with the vector dimensions. It is also important to note that
LanceDB only understands subclasses of `lancedb.pydantic.LanceModel` LanceDB only understands subclasses of `lancedb.pydantic.LanceModel`
(which itself derives from `pydantic.BaseModel`). (which itself derives from `pydantic.BaseModel`).
@@ -202,89 +116,11 @@ table_name = "movielens_small"
table = db.create_table(table_name, schema=Content) 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 ### 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()` 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. 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. Here's an example using using `RecordBatch` iterator for creating tables.
@@ -309,47 +145,13 @@ schema = pa.schema([
pa.field("price", pa.float32()), pa.field("price", pa.float32()),
]) ])
db.create_table("batched_tale", make_batches(), schema=schema) db.create_table("table4", make_batches(), schema=schema)
``` ```
You can also use iterators of other types like Pandas DataFrame or Pylists directly in the above example. You can also use iterators of other types like Pandas dataframe or Pylists directly in the above example.
## Open existing tables ## Creating Empty Table
You can also create empty tables in python. Initialize it with schema and later ingest data into it.
=== "Python"
If you forget the name of your table, you can always get a listing of all table names.
```python
print(db.table_names())
```
Then, you can open any existing tables.
```python
tbl = db.open_table("my_table")
```
=== "JavaScript"
If you forget the name of your table, you can always get a listing of all table names.
```javascript
console.log(await db.tableNames());
```
Then, you can open any existing tables.
```javascript
const tbl = await db.openTable("my_table");
```
## Creating empty table
=== "Python"
In Python, 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
An empty table can be initialized via a PyArrow schema.
```python ```python
import lancedb import lancedb
@@ -361,110 +163,132 @@ You can also use iterators of other types like Pandas DataFrame or Pylists direc
pa.field("item", pa.string()), pa.field("item", pa.string()),
pa.field("price", pa.float32()), 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 You can also use Pydantic to specify the schema
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`.
```python ```python
import lancedb import lancedb
from lancedb.pydantic import LanceModel, vector from lancedb.pydantic import LanceModel, vector
class Item(LanceModel): class Model(LanceModel):
vector: Vector(2) vector: Vector(2)
item: str
price: float
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"
## Adding to a table ### VectorDB Connection
```javascript
const lancedb = require("vectordb");
const uri = "data/sample-lancedb";
const db = await lancedb.connect(uri);
```
### Creating a Table
You can create a LanceDB table in javascript using an array of records.
```javascript
data
const tb = await db.createTable("my_table",
data=[{"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 using the various methods available.
=== "Python" === "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 ```python
df = pd.DataFrame({ 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) 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. You can also add a large dataset batch in one go using Iterator of any supported data types.
### Adding to table using Iterator
```python ```python
def make_batches(): def make_batches():
for i in range(5): for i in range(5):
yield [ yield [
{"vector": [3.1, 4.1], "item": "peach", "price": 6.0}, {"vector": [3.1, 4.1], "item": "foo", "price": 10.0},
{"vector": [5.9, 26.5], "item": "pear", "price": 5.0} {"vector": [5.9, 26.5], "item": "bar", "price": 20.0}
] ]
tbl.add(make_batches()) 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 |
|---|---|---|---|
```python | data | DATA | The data to insert into the table. | required |
pa_table = pa.Table.from_arrays( | 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 |
pa.array([[9.1, 6.7], [9.9, 31.2]], | fill value | float | The value to use when filling vectors: Only used if on_bad_vectors="fill". | 0.0 |
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)
```
=== "JavaScript" === "Javascript/Typescript"
```javascript ```javascript
await tbl.add( await tbl.add([{vector: [1.3, 1.4], item: "fizz", price: 100.0},
[ {vector: [9.5, 56.2], item: "buzz", price: 200.0}])
{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. 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.
@@ -509,7 +333,7 @@ Use the `delete()` method on tables to delete rows from a table. To choose which
# 0 3 [5.0, 6.0] # 0 3 [5.0, 6.0]
``` ```
=== "JavaScript" === "Javascript/Typescript"
```javascript ```javascript
await tbl.delete('item = "fizz"') await tbl.delete('item = "fizz"')
@@ -537,28 +361,19 @@ Use the `delete()` method on tables to delete rows from a table. To choose which
await tbl.countRows() // Returns 1 await tbl.countRows() // Returns 1
``` ```
## Updating a table ### Updating a Table [Experimental]
EXPERIMENTAL: Update rows in the table (not threadsafe).
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. This can be used to update zero to all rows depending on how many rows match the where clause.
| Parameter | Type | Description | | Parameter | Type | Description |
|---|---|---| |---|---|---|
| `where` | `str` | The SQL where clause to use when updating rows. For example, `'x = 2'` or `'x IN (1, 2, 3)'`. The filter must not be empty, or it will error. | | `where` | `str` | The SQL where clause to use when updating rows. For example, `'x = 2'` or `'x IN (1, 2, 3)'`. The filter must not be empty, or it will error. |
| `values` | `dict` | The values to update. The keys are the column names and the values are the values to set. | | `values` | `dict` | The values to update. The keys are the column names and the values are the values to set. |
| `values_sql` | `dict` | The values to update. The keys are the column names and the values are the SQL expressions to set. For example, `{'x': 'x + 1'}` will increment the value of the `x` column by 1. |
!!! info "SQL syntax"
See [SQL filters](../sql.md) for more information on the supported SQL syntax.
!!! warning "Warning"
Updating nested columns is not yet supported.
=== "Python" === "Python"
API Reference: [lancedb.table.Table.update][]
```python ```python
import lancedb import lancedb
import pandas as pd import pandas as pd
@@ -588,118 +403,6 @@ This can be used to update zero to all rows depending on how many rows match the
2 2 [10.0, 10.0] 2 2 [10.0, 10.0]
``` ```
=== "JavaScript/Typescript" ## What's Next?
API Reference: [vectordb.Table.update](../javascript/interfaces/Table.md/#update) Learn how to Query your tables and create indices
```javascript
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]} })
```
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"
```python
# Update the table where x = 2
table.update(valuesSql={"x": "x + 1"})
print(table.to_pandas())
```
Output
```shell
x vector
0 2 [1.0, 2.0]
1 4 [5.0, 6.0]
2 3 [10.0, 10.0]
```
=== "JavaScript/Typescript"
```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.
## 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()
```
=== "JavaScript/Typescript"
To set strong consistency, use `0`:
```javascript
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:
```javascript
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.

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@@ -1,49 +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.

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@@ -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
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 ## Documentation Quick Links
* [`Basic Operations`](basic.md) - basic functionality of LanceDB.
The following pages go deeper into the internal of LanceDB and how to use it. * [`Embedding Functions`](embeddings/index.md) - functions for working with embeddings.
* [`Indexing`](ann_indexes.md) - create vector indexes to speed up queries.
* [Quick start](basic.md): Get started with LanceDB and vector DB concepts * [`Full text search`](fts.md) - [EXPERIMENTAL] full-text search API
* [Vector search concepts](concepts/vector_search.md): Understand the basics of vector search * [`Ecosystem Integrations`](python/integration.md) - integrating LanceDB with python data tooling ecosystem.
* [Working with tables](guides/tables.md): Learn how to work with tables and their associated functions * [`Python API Reference`](python/python.md) - detailed documentation for the LanceDB Python SDK.
* [Indexing](ann_indexes.md): Understand how to create indexes * [`Node API Reference`](javascript/modules.md) - detailed documentation for the LanceDB Node SDK.
* [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

View File

@@ -1,19 +1,21 @@
# Integrations # Integrations
LanceDB supports ingesting from and exporting to your favorite data formats across the Python and JavaScript ecosystems. ## Data Formats
![Illustration](../assets/ecosystem-illustration.png) LanceDB supports ingesting from your favorite data tools.
![Illustration](/lancedb/assets/ecosystem-illustration.png)
## Tools ## Tools
LanceDB is integrated with a lot of popular AI tools, with more coming soon. LanceDB is integrated with most of the popular AI tools, with more coming soon.
Get started using these examples and quick links. Get started using these examples and quick links.
| Integrations | | | Integrations | |
|---|---:| |---|---:|
| <h3> LlamaIndex </h3>LlamaIndex is a simple, flexible data framework for connecting custom data sources to large language models. Llama index integrates with LanceDB as the serverless VectorDB. <h3>[Lean More](https://gpt-index.readthedocs.io/en/latest/examples/vector_stores/LanceDBIndexDemo.html) </h3> |<img src="../assets/llama-index.jpg" alt="image" width="150" height="auto">| | <h3> LlamaIndex </h3>LlamaIndex is a simple, flexible data framework for connecting custom data sources to large language models. Llama index integrates with LanceDB as the serverless VectorDB. <h3>[Lean More](https://gpt-index.readthedocs.io/en/latest/examples/vector_stores/LanceDBIndexDemo.html) </h3> |<img src="../assets/llama-index.jpg" alt="image" width="150" height="auto">|
| <h3>Langchain</h3>Langchain allows building applications with LLMs through composability <h3>[Lean More](https://python.langchain.com/docs/integrations/vectorstores/lancedb) | <img src="../assets/langchain.png" alt="image" width="150" height="auto">| | <h3>Langchain</h3>Langchain allows building applications with LLMs through composability <h3>[Lean More](https://python.langchain.com/en/latest/modules/indexes/vectorstores/examples/lancedb.html) | <img src="../assets/langchain.png" alt="image" width="150" height="auto">|
| <h3>Langchain TS</h3> Javascript bindings for Langchain. It integrates with LanceDB's serverless vectordb allowing you to build powerful AI applications through composibility using only serverless functions. <h3>[Learn More]( https://js.langchain.com/docs/modules/data_connection/vectorstores/integrations/lancedb) | <img src="../assets/langchain.png" alt="image" width="150" height="auto">| | <h3>Langchain TS</h3> Javascript bindings for Langchain. It integrates with LanceDB's serverless vectordb allowing you to build powerful AI applications through composibility using only serverless functions. <h3>[Learn More]( https://js.langchain.com/docs/modules/data_connection/vectorstores/integrations/lancedb) | <img src="../assets/langchain.png" alt="image" width="150" height="auto">|
| <h3>Voxel51</h3> It is an open source toolkit that enables you to build better computer vision workflows by improving the quality of your datasets and delivering insights about your models.<h3>[Learn More](./voxel51.md) | <img src="../assets/voxel.gif" alt="image" width="150" height="auto">| | <h3>Voxel51</h3> It is an open source toolkit that enables you to build better computer vision workflows by improving the quality of your datasets and delivering insights about your models.<h3>[Learn More](./voxel51.md) | <img src="../assets/voxel.gif" alt="image" width="150" height="auto">|
| <h3>PromptTools</h3> Offers a set of free, open-source tools for testing and experimenting with models, prompts, and configurations. The core idea is to enable developers to evaluate prompts using familiar interfaces like code and notebooks. You can use it to experiment with different configurations of LanceDB, and test how LanceDB integrates with the LLM of your choice.<h3>[Learn More](./prompttools.md) | <img src="../assets/prompttools.jpeg" alt="image" width="150" height="auto">| | <h3>PromptTools</h3> Offers a set of free, open-source tools for testing and experimenting with models, prompts, and configurations. The core idea is to enable developers to evaluate prompts using familiar interfaces like code and notebooks. You can use it to experiment with different configurations of LanceDB, and test how LanceDB integrates with the LLM of your choice.<h3>[Learn More](./prompttools.md) | <img src="../assets/prompttools.jpeg" alt="image" width="150" height="auto">|

View File

@@ -1,9 +1,7 @@
[PromptTools](https://github.com/hegelai/prompttools) offers a set of free, open-source tools for testing and experimenting with models, prompts, and configurations. The core idea is to enable developers to evaluate prompts using familiar interfaces like code and notebooks. You can use it to experiment with different configurations of LanceDB, and test how LanceDB integrates with the LLM of your choice. [PromptTools](https://github.com/hegelai/prompttools) offers a set of free, open-source tools for testing and experimenting with models, prompts, and configurations. The core idea is to enable developers to evaluate prompts using familiar interfaces like code and notebooks. You can use it to experiment with different configurations of LanceDB, and test how LanceDB integrates with the LLM of your choice.
<!--
[Evaluating Prompts with PromptTools](./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> -->
<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> [Evaluating Prompts with PromptTools](./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>
![Alt text](https://prompttools.readthedocs.io/en/latest/_images/demo.gif "a title") ![Alt text](https://prompttools.readthedocs.io/en/latest/_images/demo.gif "a title")

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@@ -1,29 +1,31 @@
# FiftyOne ![example](/assets/voxel.gif)
FiftyOne is an open source toolkit for building high-quality datasets and computer vision models. It provides an API to create LanceDB tables and run similarity queries, both programmatically in Python and via point-and-click in the App. Basic recipe
____________
![example](../assets/voxel.gif) The basic workflow to use LanceDB to create a similarity index on your FiftyOne
datasets and use this to query your data is as follows:
## Basic recipe 1) Load a dataset into FiftyOne
The basic workflow shown below uses LanceDB to create a similarity index on your FiftyOne 2) Compute embedding vectors for samples or patches in your dataset, or select
datasets: a model to use to generate embeddings
1. Load a dataset into FiftyOne. 3) Use the `compute_similarity()`
method to generate a LanceDB table for the samples or object
patches embeddings in a dataset by setting the parameter `backend="lancedb"` and
specifying a `brain_key` of your choice
2. Compute embedding vectors for samples or patches in your dataset, or select a model to use to generate embeddings. 4) Use this LanceDB table to query your data with
`sort_by_similarity()`
3. Use the `compute_similarity()` method to generate a LanceDB table for the samples or object patches embeddings in a dataset by setting the parameter `backend="lancedb"` and specifying a `brain_key` of your choice. 5) If desired, delete the table
4. Use this LanceDB table to query your data with `sort_by_similarity()`.
5. If desired, delete the table.
The example below demonstrates this workflow. The example below demonstrates this workflow.
!!! Note !!! Note
Install the LanceDB Python client to run the code shown below. You must install the LanceDB Python client to run this
``` ```
pip install lancedb pip install lancedb
``` ```
@@ -66,4 +68,4 @@ lancedb_index.cleanup()
dataset.delete_brain_run("lancedb_index") dataset.delete_brain_run("lancedb_index")
``` ```
For a much more in depth walkthrough of the integration, visit the LanceDB x Voxel51 [docs page](https://docs.voxel51.com/integrations/lancedb.html). More in depth walkthrough of the integration, visit the LanceDB guide on Voxel51 - [LaceDB x Voxel51](https://docs.voxel51.com/integrations/lancedb.html)

View File

@@ -11,13 +11,8 @@ npm install vectordb
``` ```
This will download the appropriate native library for your platform. We currently This will download the appropriate native library for your platform. We currently
support: support x86_64 Linux, aarch64 Linux, Intel MacOS, and ARM (M1/M2) MacOS. We do not
yet support Windows or musl-based Linux (such as Alpine Linux).
* Linux (x86_64 and aarch64)
* MacOS (Intel and ARM/M1/M2)
* Windows (x86_64 only)
We do not yet support musl-based Linux (such as Alpine Linux) or aarch64 Windows.
## Usage ## Usage

View File

@@ -1,41 +0,0 @@
[vectordb](../README.md) / [Exports](../modules.md) / DefaultWriteOptions
# Class: DefaultWriteOptions
Write options when creating a Table.
## Implements
- [`WriteOptions`](../interfaces/WriteOptions.md)
## Table of contents
### Constructors
- [constructor](DefaultWriteOptions.md#constructor)
### Properties
- [writeMode](DefaultWriteOptions.md#writemode)
## Constructors
### constructor
**new DefaultWriteOptions**()
## Properties
### writeMode
**writeMode**: [`WriteMode`](../enums/WriteMode.md) = `WriteMode.Create`
A [WriteMode](../enums/WriteMode.md) to use on this operation
#### Implementation of
[WriteOptions](../interfaces/WriteOptions.md).[writeMode](../interfaces/WriteOptions.md#writemode)
#### Defined in
[index.ts:1019](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L1019)

View File

@@ -26,7 +26,7 @@ A connection to a LanceDB database.
### Methods ### Methods
- [createTable](LocalConnection.md#createtable) - [createTable](LocalConnection.md#createtable)
- [createTableImpl](LocalConnection.md#createtableimpl) - [createTableArrow](LocalConnection.md#createtablearrow)
- [dropTable](LocalConnection.md#droptable) - [dropTable](LocalConnection.md#droptable)
- [openTable](LocalConnection.md#opentable) - [openTable](LocalConnection.md#opentable)
- [tableNames](LocalConnection.md#tablenames) - [tableNames](LocalConnection.md#tablenames)
@@ -46,7 +46,7 @@ A connection to a LanceDB database.
#### Defined in #### Defined in
[index.ts:489](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L489) [index.ts:184](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L184)
## Properties ## Properties
@@ -56,25 +56,17 @@ A connection to a LanceDB database.
#### Defined in #### Defined in
[index.ts:487](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L487) [index.ts:182](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L182)
___ ___
### \_options ### \_options
`Private` `Readonly` **\_options**: () => [`ConnectionOptions`](../interfaces/ConnectionOptions.md) `Private` `Readonly` **\_options**: [`ConnectionOptions`](../interfaces/ConnectionOptions.md)
#### Type declaration
▸ (): [`ConnectionOptions`](../interfaces/ConnectionOptions.md)
##### Returns
[`ConnectionOptions`](../interfaces/ConnectionOptions.md)
#### Defined in #### Defined in
[index.ts:486](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L486) [index.ts:181](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L181)
## Accessors ## Accessors
@@ -92,34 +84,27 @@ ___
#### Defined in #### Defined in
[index.ts:494](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L494) [index.ts:189](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L189)
## Methods ## Methods
### createTable ### createTable
**createTable**\<`T`\>(`name`, `data?`, `optsOrEmbedding?`, `opt?`): `Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\> **createTable**(`name`, `data`, `mode?`): `Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
Creates a new Table, optionally initializing it with new data. Creates a new Table and initialize it with new data.
#### Type parameters
| Name |
| :------ |
| `T` |
#### Parameters #### Parameters
| Name | Type | | Name | Type | Description |
| :------ | :------ | | :------ | :------ | :------ |
| `name` | `string` \| [`CreateTableOptions`](../interfaces/CreateTableOptions.md)\<`T`\> | | `name` | `string` | The name of the table. |
| `data?` | `Record`\<`string`, `unknown`\>[] | | `data` | `Record`<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the Table |
| `optsOrEmbedding?` | [`WriteOptions`](../interfaces/WriteOptions.md) \| [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> | | `mode?` | [`WriteMode`](../enums/WriteMode.md) | The write mode to use when creating the table. |
| `opt?` | [`WriteOptions`](../interfaces/WriteOptions.md) |
#### Returns #### Returns
`Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\> `Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
#### Implementation of #### Implementation of
@@ -127,94 +112,33 @@ Creates a new Table, optionally initializing it with new data.
#### Defined in #### Defined in
[index.ts:542](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L542) [index.ts:230](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L230)
___ **createTable**(`name`, `data`, `mode`): `Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
### createTableImpl
`Private` **createTableImpl**\<`T`\>(`«destructured»`): `Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\>
#### Type parameters
| Name |
| :------ |
| `T` |
#### Parameters #### Parameters
| Name | Type | | Name | Type |
| :------ | :------ | | :------ | :------ |
| `«destructured»` | `Object` | | `name` | `string` |
|  `data?` | `Table`\<`any`\> \| `Record`\<`string`, `unknown`\>[] | | `data` | `Record`<`string`, `unknown`\>[] |
|  `embeddingFunction?` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> | | `mode` | [`WriteMode`](../enums/WriteMode.md) |
|  `name` | `string` |
|  `schema?` | `Schema`\<`any`\> |
|  `writeOptions?` | [`WriteOptions`](../interfaces/WriteOptions.md) |
#### Returns #### Returns
`Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\> `Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
#### Defined in
[index.ts:576](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L576)
___
### dropTable
**dropTable**(`name`): `Promise`\<`void`\>
Drop an existing table.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table to drop. |
#### Returns
`Promise`\<`void`\>
#### Implementation of #### Implementation of
[Connection](../interfaces/Connection.md).[dropTable](../interfaces/Connection.md#droptable) Connection.createTable
#### Defined in #### Defined in
[index.ts:630](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L630) [index.ts:231](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L231)
___ **createTable**<`T`\>(`name`, `data`, `mode`, `embeddings`): `Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
### openTable Creates a new Table and initialize it with new data.
**openTable**(`name`): `Promise`\<[`Table`](../interfaces/Table.md)\<`number`[]\>\>
Open a table in the database.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table. |
#### Returns
`Promise`\<[`Table`](../interfaces/Table.md)\<`number`[]\>\>
#### Implementation of
[Connection](../interfaces/Connection.md).[openTable](../interfaces/Connection.md#opentable)
#### Defined in
[index.ts:510](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L510)
**openTable**\<`T`\>(`name`, `embeddings`): `Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\>
Open a table in the database.
#### Type parameters #### Type parameters
@@ -227,21 +151,23 @@ Open a table in the database.
| Name | Type | Description | | Name | Type | Description |
| :------ | :------ | :------ | | :------ | :------ | :------ |
| `name` | `string` | The name of the table. | | `name` | `string` | The name of the table. |
| `embeddings` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> | An embedding function to use on this Table | | `data` | `Record`<`string`, `unknown`\>[] | Non-empty Array of Records to be inserted into the Table |
| `mode` | [`WriteMode`](../enums/WriteMode.md) | The write mode to use when creating the table. |
| `embeddings` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\> | An embedding function to use on this Table |
#### Returns #### Returns
`Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\> `Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
#### Implementation of #### Implementation of
Connection.openTable Connection.createTable
#### Defined in #### Defined in
[index.ts:518](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L518) [index.ts:241](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L241)
**openTable**\<`T`\>(`name`, `embeddings?`): `Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\> **createTable**<`T`\>(`name`, `data`, `mode`, `embeddings?`): `Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
#### Type parameters #### Type parameters
@@ -254,11 +180,119 @@ Connection.openTable
| Name | Type | | Name | Type |
| :------ | :------ | | :------ | :------ |
| `name` | `string` | | `name` | `string` |
| `embeddings?` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> | | `data` | `Record`<`string`, `unknown`\>[] |
| `mode` | [`WriteMode`](../enums/WriteMode.md) |
| `embeddings?` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\> |
#### Returns #### Returns
`Promise`\<[`Table`](../interfaces/Table.md)\<`T`\>\> `Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
#### Implementation of
Connection.createTable
#### Defined in
[index.ts:242](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L242)
___
### createTableArrow
**createTableArrow**(`name`, `table`): `Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `name` | `string` |
| `table` | `Table`<`any`\> |
#### Returns
`Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
#### Implementation of
[Connection](../interfaces/Connection.md).[createTableArrow](../interfaces/Connection.md#createtablearrow)
#### Defined in
[index.ts:266](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L266)
___
### dropTable
**dropTable**(`name`): `Promise`<`void`\>
Drop an existing table.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table to drop. |
#### Returns
`Promise`<`void`\>
#### Implementation of
[Connection](../interfaces/Connection.md).[dropTable](../interfaces/Connection.md#droptable)
#### Defined in
[index.ts:276](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L276)
___
### openTable
**openTable**(`name`): `Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
Open a table in the database.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table. |
#### Returns
`Promise`<[`Table`](../interfaces/Table.md)<`number`[]\>\>
#### Implementation of
[Connection](../interfaces/Connection.md).[openTable](../interfaces/Connection.md#opentable)
#### Defined in
[index.ts:205](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L205)
**openTable**<`T`\>(`name`, `embeddings`): `Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
Open a table in the database.
#### Type parameters
| Name |
| :------ |
| `T` |
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `name` | `string` | The name of the table. |
| `embeddings` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\> | An embedding function to use on this Table |
#### Returns
`Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
#### Implementation of #### Implementation of
@@ -266,19 +300,46 @@ Connection.openTable
#### Defined in #### Defined in
[index.ts:522](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L522) [index.ts:212](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L212)
**openTable**<`T`\>(`name`, `embeddings?`): `Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
#### Type parameters
| Name |
| :------ |
| `T` |
#### Parameters
| Name | Type |
| :------ | :------ |
| `name` | `string` |
| `embeddings?` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\> |
#### Returns
`Promise`<[`Table`](../interfaces/Table.md)<`T`\>\>
#### Implementation of
Connection.openTable
#### Defined in
[index.ts:213](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L213)
___ ___
### tableNames ### tableNames
**tableNames**(): `Promise`\<`string`[]\> **tableNames**(): `Promise`<`string`[]\>
Get the names of all tables in the database. Get the names of all tables in the database.
#### Returns #### Returns
`Promise`\<`string`[]\> `Promise`<`string`[]\>
#### Implementation of #### Implementation of
@@ -286,4 +347,4 @@ Get the names of all tables in the database.
#### Defined in #### Defined in
[index.ts:501](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L501) [index.ts:196](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L196)

View File

@@ -1,6 +1,6 @@
[vectordb](../README.md) / [Exports](../modules.md) / LocalTable [vectordb](../README.md) / [Exports](../modules.md) / LocalTable
# Class: LocalTable\<T\> # Class: LocalTable<T\>
A LanceDB Table is the collection of Records. Each Record has one or more vector fields. A LanceDB Table is the collection of Records. Each Record has one or more vector fields.
@@ -12,7 +12,7 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
## Implements ## Implements
- [`Table`](../interfaces/Table.md)\<`T`\> - [`Table`](../interfaces/Table.md)<`T`\>
## Table of contents ## Table of contents
@@ -23,40 +23,28 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
### Properties ### Properties
- [\_embeddings](LocalTable.md#_embeddings) - [\_embeddings](LocalTable.md#_embeddings)
- [\_isElectron](LocalTable.md#_iselectron)
- [\_name](LocalTable.md#_name) - [\_name](LocalTable.md#_name)
- [\_options](LocalTable.md#_options) - [\_options](LocalTable.md#_options)
- [\_tbl](LocalTable.md#_tbl) - [\_tbl](LocalTable.md#_tbl)
- [where](LocalTable.md#where)
### Accessors ### Accessors
- [name](LocalTable.md#name) - [name](LocalTable.md#name)
- [schema](LocalTable.md#schema)
### Methods ### Methods
- [add](LocalTable.md#add) - [add](LocalTable.md#add)
- [checkElectron](LocalTable.md#checkelectron)
- [cleanupOldVersions](LocalTable.md#cleanupoldversions)
- [compactFiles](LocalTable.md#compactfiles)
- [countRows](LocalTable.md#countrows) - [countRows](LocalTable.md#countrows)
- [createIndex](LocalTable.md#createindex) - [createIndex](LocalTable.md#createindex)
- [createScalarIndex](LocalTable.md#createscalarindex)
- [delete](LocalTable.md#delete) - [delete](LocalTable.md#delete)
- [filter](LocalTable.md#filter)
- [getSchema](LocalTable.md#getschema)
- [indexStats](LocalTable.md#indexstats)
- [listIndices](LocalTable.md#listindices)
- [overwrite](LocalTable.md#overwrite) - [overwrite](LocalTable.md#overwrite)
- [search](LocalTable.md#search) - [search](LocalTable.md#search)
- [update](LocalTable.md#update)
## Constructors ## Constructors
### constructor ### constructor
**new LocalTable**\<`T`\>(`tbl`, `name`, `options`) **new LocalTable**<`T`\>(`tbl`, `name`, `options`)
#### Type parameters #### Type parameters
@@ -74,9 +62,9 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
#### Defined in #### Defined in
[index.ts:642](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L642) [index.ts:287](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L287)
**new LocalTable**\<`T`\>(`tbl`, `name`, `options`, `embeddings`) **new LocalTable**<`T`\>(`tbl`, `name`, `options`, `embeddings`)
#### Type parameters #### Type parameters
@@ -91,31 +79,21 @@ A LanceDB Table is the collection of Records. Each Record has one or more vector
| `tbl` | `any` | | | `tbl` | `any` | |
| `name` | `string` | | | `name` | `string` | |
| `options` | [`ConnectionOptions`](../interfaces/ConnectionOptions.md) | | | `options` | [`ConnectionOptions`](../interfaces/ConnectionOptions.md) | |
| `embeddings` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> | An embedding function to use when interacting with this table | | `embeddings` | [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\> | An embedding function to use when interacting with this table |
#### Defined in #### Defined in
[index.ts:649](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L649) [index.ts:294](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L294)
## Properties ## Properties
### \_embeddings ### \_embeddings
`Private` `Optional` `Readonly` **\_embeddings**: [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`T`\> `Private` `Optional` `Readonly` **\_embeddings**: [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`T`\>
#### Defined in #### Defined in
[index.ts:639](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L639) [index.ts:284](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L284)
___
### \_isElectron
`Private` `Readonly` **\_isElectron**: `boolean`
#### Defined in
[index.ts:638](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L638)
___ ___
@@ -125,61 +103,27 @@ ___
#### Defined in #### Defined in
[index.ts:637](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L637) [index.ts:283](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L283)
___ ___
### \_options ### \_options
`Private` `Readonly` **\_options**: () => [`ConnectionOptions`](../interfaces/ConnectionOptions.md) `Private` `Readonly` **\_options**: [`ConnectionOptions`](../interfaces/ConnectionOptions.md)
#### Type declaration
▸ (): [`ConnectionOptions`](../interfaces/ConnectionOptions.md)
##### Returns
[`ConnectionOptions`](../interfaces/ConnectionOptions.md)
#### Defined in #### Defined in
[index.ts:640](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L640) [index.ts:285](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L285)
___ ___
### \_tbl ### \_tbl
`Private` **\_tbl**: `any` `Private` `Readonly` **\_tbl**: `any`
#### Defined in #### Defined in
[index.ts:636](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L636) [index.ts:282](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L282)
___
### where
**where**: (`value`: `string`) => [`Query`](Query.md)\<`T`\>
#### Type declaration
▸ (`value`): [`Query`](Query.md)\<`T`\>
Creates a filter query to find all rows matching the specified criteria
##### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `value` | `string` | The filter criteria (like SQL where clause syntax) |
##### Returns
[`Query`](Query.md)\<`T`\>
#### Defined in
[index.ts:688](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L688)
## Accessors ## Accessors
@@ -197,31 +141,13 @@ Creates a filter query to find all rows matching the specified criteria
#### Defined in #### Defined in
[index.ts:668](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L668) [index.ts:302](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L302)
___
### schema
`get` **schema**(): `Promise`\<`Schema`\<`any`\>\>
#### Returns
`Promise`\<`Schema`\<`any`\>\>
#### Implementation of
[Table](../interfaces/Table.md).[schema](../interfaces/Table.md#schema)
#### Defined in
[index.ts:849](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L849)
## Methods ## Methods
### add ### add
**add**(`data`): `Promise`\<`number`\> **add**(`data`): `Promise`<`number`\>
Insert records into this Table. Insert records into this Table.
@@ -229,11 +155,11 @@ Insert records into this Table.
| Name | Type | Description | | Name | Type | Description |
| :------ | :------ | :------ | | :------ | :------ | :------ |
| `data` | `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table | | `data` | `Record`<`string`, `unknown`\>[] | Records to be inserted into the Table |
#### Returns #### Returns
`Promise`\<`number`\> `Promise`<`number`\>
The number of rows added to the table The number of rows added to the table
@@ -243,83 +169,19 @@ The number of rows added to the table
#### Defined in #### Defined in
[index.ts:696](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L696) [index.ts:320](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L320)
___
### checkElectron
`Private` **checkElectron**(): `boolean`
#### Returns
`boolean`
#### Defined in
[index.ts:861](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L861)
___
### cleanupOldVersions
**cleanupOldVersions**(`olderThan?`, `deleteUnverified?`): `Promise`\<[`CleanupStats`](../interfaces/CleanupStats.md)\>
Clean up old versions of the table, freeing disk space.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `olderThan?` | `number` | The minimum age in minutes of the versions to delete. If not provided, defaults to two weeks. |
| `deleteUnverified?` | `boolean` | Because they may be part of an in-progress transaction, uncommitted files newer than 7 days old are not deleted by default. This means that failed transactions can leave around data that takes up disk space for up to 7 days. You can override this safety mechanism by setting this option to `true`, only if you promise there are no in progress writes while you run this operation. Failure to uphold this promise can lead to corrupted tables. |
#### Returns
`Promise`\<[`CleanupStats`](../interfaces/CleanupStats.md)\>
#### Defined in
[index.ts:808](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L808)
___
### compactFiles
**compactFiles**(`options?`): `Promise`\<[`CompactionMetrics`](../interfaces/CompactionMetrics.md)\>
Run the compaction process on the table.
This can be run after making several small appends to optimize the table
for faster reads.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `options?` | [`CompactionOptions`](../interfaces/CompactionOptions.md) | Advanced options configuring compaction. In most cases, you can omit this arguments, as the default options are sensible for most tables. |
#### Returns
`Promise`\<[`CompactionMetrics`](../interfaces/CompactionMetrics.md)\>
Metrics about the compaction operation.
#### Defined in
[index.ts:831](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L831)
___ ___
### countRows ### countRows
**countRows**(): `Promise`\<`number`\> **countRows**(): `Promise`<`number`\>
Returns the number of rows in this table. Returns the number of rows in this table.
#### Returns #### Returns
`Promise`\<`number`\> `Promise`<`number`\>
#### Implementation of #### Implementation of
@@ -327,16 +189,20 @@ Returns the number of rows in this table.
#### Defined in #### Defined in
[index.ts:749](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L749) [index.ts:362](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L362)
___ ___
### createIndex ### createIndex
**createIndex**(`indexParams`): `Promise`\<`any`\> **createIndex**(`indexParams`): `Promise`<`any`\>
Create an ANN index on this Table vector index. Create an ANN index on this Table vector index.
**`See`**
VectorIndexParams.
#### Parameters #### Parameters
| Name | Type | Description | | Name | Type | Description |
@@ -345,11 +211,7 @@ Create an ANN index on this Table vector index.
#### Returns #### Returns
`Promise`\<`any`\> `Promise`<`any`\>
**`See`**
VectorIndexParams.
#### Implementation of #### Implementation of
@@ -357,48 +219,13 @@ VectorIndexParams.
#### Defined in #### Defined in
[index.ts:734](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L734) [index.ts:355](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L355)
___
### createScalarIndex
**createScalarIndex**(`column`, `replace`): `Promise`\<`void`\>
Create a scalar index on this Table for the given column
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `column` | `string` | The column to index |
| `replace` | `boolean` | If false, fail if an index already exists on the column Scalar indices, like vector indices, can be used to speed up scans. A scalar index can speed up scans that contain filter expressions on the indexed column. For example, the following scan will be faster if the column `my_col` has a scalar index: ```ts const con = await lancedb.connect('./.lancedb'); const table = await con.openTable('images'); const results = await table.where('my_col = 7').execute(); ``` Scalar indices can also speed up scans containing a vector search and a prefilter: ```ts const con = await lancedb.connect('././lancedb'); const table = await con.openTable('images'); const results = await table.search([1.0, 2.0]).where('my_col != 7').prefilter(true); ``` Scalar indices can only speed up scans for basic filters using equality, comparison, range (e.g. `my_col BETWEEN 0 AND 100`), and set membership (e.g. `my_col IN (0, 1, 2)`) Scalar indices can be used if the filter contains multiple indexed columns and the filter criteria are AND'd or OR'd together (e.g. `my_col < 0 AND other_col> 100`) Scalar indices may be used if the filter contains non-indexed columns but, depending on the structure of the filter, they may not be usable. For example, if the column `not_indexed` does not have a scalar index then the filter `my_col = 0 OR not_indexed = 1` will not be able to use any scalar index on `my_col`. |
#### Returns
`Promise`\<`void`\>
**`Examples`**
```ts
const con = await lancedb.connect('././lancedb')
const table = await con.openTable('images')
await table.createScalarIndex('my_col')
```
#### Implementation of
[Table](../interfaces/Table.md).[createScalarIndex](../interfaces/Table.md#createscalarindex)
#### Defined in
[index.ts:742](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L742)
___ ___
### delete ### delete
**delete**(`filter`): `Promise`\<`void`\> **delete**(`filter`): `Promise`<`void`\>
Delete rows from this table. Delete rows from this table.
@@ -410,7 +237,7 @@ Delete rows from this table.
#### Returns #### Returns
`Promise`\<`void`\> `Promise`<`void`\>
#### Implementation of #### Implementation of
@@ -418,95 +245,13 @@ Delete rows from this table.
#### Defined in #### Defined in
[index.ts:758](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L758) [index.ts:371](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L371)
___
### filter
▸ **filter**(`value`): [`Query`](Query.md)\<`T`\>
Creates a filter query to find all rows matching the specified criteria
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `value` | `string` | The filter criteria (like SQL where clause syntax) |
#### Returns
[`Query`](Query.md)\<`T`\>
#### Defined in
[index.ts:684](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L684)
___
### getSchema
▸ `Private` **getSchema**(): `Promise`\<`Schema`\<`any`\>\>
#### Returns
`Promise`\<`Schema`\<`any`\>\>
#### Defined in
[index.ts:854](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L854)
___
### indexStats
▸ **indexStats**(`indexUuid`): `Promise`\<[`IndexStats`](../interfaces/IndexStats.md)\>
Get statistics about an index.
#### Parameters
| Name | Type |
| :------ | :------ |
| `indexUuid` | `string` |
#### Returns
`Promise`\<[`IndexStats`](../interfaces/IndexStats.md)\>
#### Implementation of
[Table](../interfaces/Table.md).[indexStats](../interfaces/Table.md#indexstats)
#### Defined in
[index.ts:845](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L845)
___
### listIndices
▸ **listIndices**(): `Promise`\<[`VectorIndex`](../interfaces/VectorIndex.md)[]\>
List the indicies on this table.
#### Returns
`Promise`\<[`VectorIndex`](../interfaces/VectorIndex.md)[]\>
#### Implementation of
[Table](../interfaces/Table.md).[listIndices](../interfaces/Table.md#listindices)
#### Defined in
[index.ts:841](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L841)
___ ___
### overwrite ### overwrite
**overwrite**(`data`): `Promise`\<`number`\> **overwrite**(`data`): `Promise`<`number`\>
Insert records into this Table, replacing its contents. Insert records into this Table, replacing its contents.
@@ -514,11 +259,11 @@ Insert records into this Table, replacing its contents.
| Name | Type | Description | | Name | Type | Description |
| :------ | :------ | :------ | | :------ | :------ | :------ |
| `data` | `Record`\<`string`, `unknown`\>[] | Records to be inserted into the Table | | `data` | `Record`<`string`, `unknown`\>[] | Records to be inserted into the Table |
#### Returns #### Returns
`Promise`\<`number`\> `Promise`<`number`\>
The number of rows added to the table The number of rows added to the table
@@ -528,13 +273,13 @@ The number of rows added to the table
#### Defined in #### Defined in
[index.ts:716](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L716) [index.ts:338](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L338)
___ ___
### search ### search
**search**(`query`): [`Query`](Query.md)\<`T`\> **search**(`query`): [`Query`](Query.md)<`T`\>
Creates a search query to find the nearest neighbors of the given search term Creates a search query to find the nearest neighbors of the given search term
@@ -546,7 +291,7 @@ Creates a search query to find the nearest neighbors of the given search term
#### Returns #### Returns
[`Query`](Query.md)\<`T`\> [`Query`](Query.md)<`T`\>
#### Implementation of #### Implementation of
@@ -554,30 +299,4 @@ Creates a search query to find the nearest neighbors of the given search term
#### Defined in #### Defined in
[index.ts:676](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L676) [index.ts:310](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/index.ts#L310)
___
### update
▸ **update**(`args`): `Promise`\<`void`\>
Update rows in this table.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `args` | [`UpdateArgs`](../interfaces/UpdateArgs.md) \| [`UpdateSqlArgs`](../interfaces/UpdateSqlArgs.md) | see [UpdateArgs](../interfaces/UpdateArgs.md) and [UpdateSqlArgs](../interfaces/UpdateSqlArgs.md) for more details |
#### Returns
`Promise`\<`void`\>
#### Implementation of
[Table](../interfaces/Table.md).[update](../interfaces/Table.md#update)
#### Defined in
[index.ts:771](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/index.ts#L771)

View File

@@ -6,7 +6,7 @@ An embedding function that automatically creates vector representation for a giv
## Implements ## Implements
- [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)\<`string`\> - [`EmbeddingFunction`](../interfaces/EmbeddingFunction.md)<`string`\>
## Table of contents ## Table of contents
@@ -40,7 +40,7 @@ An embedding function that automatically creates vector representation for a giv
#### Defined in #### Defined in
[embedding/openai.ts:21](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/embedding/openai.ts#L21) [embedding/openai.ts:21](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/embedding/openai.ts#L21)
## Properties ## Properties
@@ -50,7 +50,7 @@ An embedding function that automatically creates vector representation for a giv
#### Defined in #### Defined in
[embedding/openai.ts:19](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/embedding/openai.ts#L19) [embedding/openai.ts:19](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/embedding/openai.ts#L19)
___ ___
@@ -60,7 +60,7 @@ ___
#### Defined in #### Defined in
[embedding/openai.ts:18](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/embedding/openai.ts#L18) [embedding/openai.ts:18](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/embedding/openai.ts#L18)
___ ___
@@ -76,13 +76,13 @@ The name of the column that will be used as input for the Embedding Function.
#### Defined in #### Defined in
[embedding/openai.ts:50](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/embedding/openai.ts#L50) [embedding/openai.ts:50](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/embedding/openai.ts#L50)
## Methods ## Methods
### embed ### embed
**embed**(`data`): `Promise`\<`number`[][]\> **embed**(`data`): `Promise`<`number`[][]\>
Creates a vector representation for the given values. Creates a vector representation for the given values.
@@ -94,7 +94,7 @@ Creates a vector representation for the given values.
#### Returns #### Returns
`Promise`\<`number`[][]\> `Promise`<`number`[][]\>
#### Implementation of #### Implementation of
@@ -102,4 +102,4 @@ Creates a vector representation for the given values.
#### Defined in #### Defined in
[embedding/openai.ts:38](https://github.com/lancedb/lancedb/blob/c89d5e6/node/src/embedding/openai.ts#L38) [embedding/openai.ts:38](https://github.com/lancedb/lancedb/blob/b1eeb90/node/src/embedding/openai.ts#L38)

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