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231
Commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
  Jonathan HsiehandClaude Opus 5.5
|
82d39485a4 |
feat(functions): address Functions by namespace path (#4341)
Adds namespace addressing to Functions, matching what Secrets already have (#4150). ## API `create_function` / `create_function_async`, `get_function`, `list_functions`, `drop_function` / `drop_function_async` take `namespace_path` — keyword-only in Python (sync, async and remote connections) and a trailing `&[String]` in Rust — defaulting to the root. The namespace is addressed in the route identifier (`/v1/function/analytics$features$embed/describe`, `/v1/namespace/analytics$features/function/list`); no body carries it. `FunctionVersion` and `FunctionVersionRef` name their Function **by parts** — a short `name` plus `namespace_path` — the same shape as `SecretReference`, so a returned version reopens from its own fields: ```python fv = db.create_function(embed, namespace_path=["analytics", "features"]) fv.name, fv.namespace_path # "embed", ("analytics", "features") db.get_function(fv.name, version=fv.version, namespace_path=list(fv.namespace_path)) ``` An empty path is omitted from the wire, so root documents keep their shape. `namespace_path` is passed straight to the binding, so a bare string (`namespace_path="prod"`) is a `TypeError` rather than four one-character segments; segments are checked for addressability before a request is built. The binding and application allow-lists now share one field list, `FUNCTION_VERSION_REF_FIELDS`, which admits `namespace_path` — without it a namespaced binding or application read as coming from a newer contract. ## Service side The Sophon half serves and persists FunctionVersion / FunctionVersionRef documents in this split form, keeping the joined id as its internal catalog key. It lands in sophon with the submodule bump. ## Tests - Rust: every Function verb addresses a namespace in the path; an unaddressable segment never reaches the transport; `FunctionVersion` round-trips a namespace and `reference()` carries it; a namespaced binding and application are known shapes. - Python: sync and async verbs address the namespace; a created Function reopens from its own `name`/`namespace_path`; a bare-string path is refused before any request. Draft: compiles, `cargo fmt --check` and clippy `-D warnings` clean; lancedb lib Function tests (116) and `first_class_function_slice2` pass on this base. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> |
||
 Xuanwo
|
ea223c4ec4 |
chore: update lance dependency to v13.0.0-beta.18 (#4339)
Updates the Rust workspace dependencies, Cargo lockfile, and Java `lance-core` to [Lance v13.0.0-beta.18](https://github.com/lance-format/lance/releases/tag/v13.0.0-beta.18). It includes lance-format/lance#9574, which bounds the memory an IVF partition split uses when it re-reads raw vectors during `optimize_indices`, and lance-format/lance#9582, which keeps the mTLS REST namespace client on rustls. Lance's new combined-fields FTS query variant (introduced by v13.0.0-beta.17) is handled the same way as in #4336: the remote capability check and Rust/Node bindings accept it, with a regression test for the remote request payload, and the Python conversion reports that this query type is not yet supported. This PR supersedes #4336. |
||
  
|
0327618a62 |
feat(sql): add native vector dedup and partitioned mv refresh (#4303)
## Summary
Materialize a source-preserving dedup result from an indexed, pinned
snapshot with a short declaration. The default greedy policy keeps the
smallest unassigned snapshot row ID and removes only its directly
matching neighbors: For A < B < C, an A–B–C chain without an A–C edge
keeps A and C.
```python
from lancedb import vector_dedup
view = db.create_materialized_view(
"images_clean",
vector_dedup("images", column="phash", distance_threshold=4),
)
cleaned = view.table
```
The Python source expression captures the source version once at
creation and
waits for the materialized result by default. Use `dataset_version=...`
for an
explicit snapshot, `with_no_data=True` for declaration only, or
`create_materialized_view_async(...)` for a job handle. AsyncConnection
supports
the same expression. It uses the existing MV REST endpoints and registry
jobs,
without opening a SQL query connection. Source names are exact
root-namespace
table names. Additional select/where/limit options are rejected for this
source.
The SQL declaration remains available:
```sql
CREATE MATERIALIZED VIEW images_clean AS
SELECT * FROM vector_dedup('images', 7, 'phash', 4);
REFRESH MATERIALIZED VIEW images_clean;
```
This is the host-facing SQL entry point. The MV builder now accepts a
typed native vector source; the Rust SDK also supports the same
definition through `MaterializedViewDefinition::from_sql` and
`prepare_definition`; `view.refresh().execute()` executes it locally.
Hosts distribute its units using their existing job infrastructure. The
raw `vector_duplicate_pairs` source remains available separately when
callers want the pair relation.
## Implementation and contract
- Use actual Rust Lance `13.0.0-beta.15` (`db53dcf367`); the native
partition primitive computes pairs from index representations without
source-vector aggregation or a Python pair loop.
- Extend partitioned MV refresh with two dependent waves. Physical
segment/partition tasks stream pairs through a bounded external sort,
select direct representatives and write per-source-fragment bitmap
artifacts. Source-fragment tasks start after every selection receipt
completes and stream retained original rows, including blob payloads,
into uncommitted output fragments.
- Reuse normal blob write coercion and row-mask scans, including stable
row-ID translation after compaction. Null vectors, isolated rows and
source deletions are preserved correctly. Conflicting representative
decisions across overlapping index scopes fail before publication.
- Expose `dependency_units()` and `write_refresh_partition_with_inputs`
alongside the existing plan/commit API. Receipts bind
snapshot/configuration/policy/destination generation. Only a complete
accepted set can publish; unfinished units restart, completed units can
be reused. There is no pair-position checkpoint.
- Use MV format 4 for dedup results and format 3 for native pairs;
Python and TypeScript metadata readers recognize both. No source
deletion or source row-ID migration occurs.
Only same-segment/same-partition edges are covered. Quantized scores use
symmetric represented-vector distances. Result materialization requires
V2 data storage and is initially a native MV source, not an ordinary
SELECT table function. Compressed vertex masks stay in memory; edge
sorting spills to local disk. Unreferenced artifacts use normal Lance
retention/cleanup and must be retained for the job's recovery window.
## Validation
AWS Linux validation:
- Native pair/result integration matrix passed: multiple
segments/partitions, exact thresholds, empty output, cross-batch data,
single-process pair parity, source preservation, lost receipts and
publication guards.
- Blob/null-vector/pinned-deletion tests passed with both row-ID modes,
including compaction that changes physical row addresses.
- Representative policy, forced external-sort spill and
conflicting/corrupt artifact tests passed.
- Full MV regression suite: 153 passed, 2 pre-existing ignored. Rust
formatting and Clippy passed.
- Python MV suite: 47 passed; TypeScript MV suite: 11 passed. Native
bindings were rebuilt in project-local environments; formatting, lint
and TypeScript docs passed.
- Rust declaration doctests: 3 passed, including the complete local
dedup example.
- Companion host validation: 41 MV job tests passed (1 pre-existing
ignored), full workspace Clippy passed, and the complete process-level
CLI E2E suite passed (3 tests). Recovery exercises both selection and
materialization waves.
- A real CIFAR-10 pHash run used five actual registry-worker owners,
completed 32 selection + 24 materialization tasks, and retained 49,846
of 50,000 rows with identical original values and image payloads.
Host workflow performance measurements are recorded in the companion
host PR. Cross-platform CI is still running. The previous remote-test
bootstrap failed before Cargo tests with `401 Bad credentials`; the
workflow fix described below is being validated by CI. No deployment or
merge is performed.
## Python source validation
AWS tests cover automatic and explicit snapshots, physical/stable row
IDs, local
and remote creation, sync/job/async-connection APIs, delayed refresh,
strict
options and identifier quoting. The native Python extension was rebuilt
through
the project's uv/maturin backend. Ruff, Pyright and the full MkDocs
API-reference
build passed; both new public symbols are rendered.
A real 50,000-image FEv2 run disabled both Python SQL entry points and
supplied an
unreachable SQL endpoint. The new API still materialized the same 49,846
retained
rows and original image payloads. Three recorded creation/refresh jobs
completed
56 tasks each on all five registry-worker owners, and remained on source
snapshot
3 after source latest advanced to 4. No worker or server wire-protocol
changes
were needed for this client entry point.
Previous CI authentication failure:
https://github.com/lancedb/lancedb/actions/runs/36334679276/job/108663151265.
## Review and CI fixes
- Validate all JSON merge source fields before projection, rejecting
unknown and duplicate names at every struct level. Missing/reordered
fields and ordinary JSON merges remain supported. A checked-in 12-case
integration matrix covers root fields, structs, lists, large lists,
fixed-size lists and map values; rejected writes leave the table version
and row count unchanged.
- Match namespace connection MV method signatures to
`MaterializedViewSource` in all four sync/async methods, fixing the
Python 3.10 import failure from runtime override checks.
- Restore the remote-test script's encrypted-CLI path: use the Actions
token for artifact download and pass `SOPHON_READ_TOKEN` under the
variable the decryption script consumes. The previous workflow omitted
that variable and attempted the private release path, failing with HTTP
401. On the final head, remote CI passes: 1,464 Rust unit tests, the
integration targets and doctests pass (3 unit tests ignored).
AWS validation for these fixes: both review reproducers failed before
their fixes and pass afterward; 55 merge tests, 29 cast tests and the
standalone 7-case admission regression pass. Python 3.10.21 imports
successfully; 90 MV/namespace tests, 14 JSON tests and four real
namespace dedup cases pass. After `794b97a0`, the native binding was
rebuilt again and the JSON suite rerun. Rust formatting/Clippy, Ruff and
Pyright pass. Sophon's locked test compilation passes against the final
SDK source for all seven affected crates. Extended runners, logs and
benchmark artifacts remain local.
Gatekeeper recommends approval on `794b97a0`, and the `breaking-change`
label is set. Final CI: **49 checks passed, 3 expected skips, no
failures or pending checks**, including remote tests, Python 3.10,
minimum dependencies and Windows ARM Rust tests. All wheel builds pass
after retrying the Linux matrix affected by transient AlmaLinux
repository-metadata 404s. All code-review threads are resolved. The PR
remains open for maintainer review and merge.
---------
Co-authored-by: Yang Cen <yangcen@Yangs-Mac-mini.local>
Co-authored-by: Lance Release <lance-dev@lancedb.com>
|
||
 Dan RammerandClaude Opus 5
|
2216586023 |
feat(query): dedup hybrid search by primary key on MemWAL tables (#4268)
Implementing a PK-based dedup to support WAL in hybrid search. Basically, the existing code just calls a vector query + FTS query and dedups locally using the row ID. Since row ID is unsupported in WAL (currently), we update the algorithm to use the tables PK (which is required in WAL, and uniquely linked to a PK on updates). To enable PK-dedup branch, we've chosen to fallback on error rather than fire an exploratory query. Specifically, we issue the regular hybrid query, using row IDs, and when that fails with "WAL does not support row IDs" we fallback to the PK-based variant, and then cache the fallback for future calls from the same client. The alternative is that we chec if WAL is enabled before issuing the query. This would require a `get_lsm_write_spec` call, slowing down all the existing non-WAL paths unnecessarily. The ultimate goal is to get row ID supported in WAL, but that is pending stable row ID GA and subsequent integration into the enterprise stack. Once that lands, we will rip out the PK-based dedup that is only for WAL-enabled tables and use the existing row ID code. This is the main reason for building this adaptively. I had spec-ed out a refactor so that rather than duplicating code between python and rust we build this in rust and have python call that through PyO3. However, that made the reverse path (ie. ) more difficult. So I think the tradeoff of maintaining duplicate code in the short term for the ease of reverting this in the medium term (hopefully 2-3 months). --------- Co-authored-by: Claude Opus 5 <noreply@anthropic.com> |
||
 Wyatt Alt
|
604b1b583b |
feat: pause and resume jobs from the Python SDK (#4112)
Cancellation is the only job control the SDK exposes, and it is terminal, so a long-running server-side job cannot be parked and picked up again. This adds `pause_job` and `resume_job` to the Rust core connection and the Python bindings (sync and async), posting to the server's `/v1/jobs/pause` and `/v1/jobs/resume` endpoints. A pause parks the job until it is resumed: its workers drain and stop. The outcome strings mirror the server's answers — a job finalizing its results reports `"committing"` and cannot be parked, and a resume before the drain is confirmed reports `"still_pausing"`; both are retried rather than failed. Resuming re-queues the job and its workers pick their work back up from checkpoints. Local connections report the operations as unsupported, like the rest of the jobs API. |
||
 Jack Ye
|
e4d0f9e2da |
feat: return a cleanup job from drop_view (#4262)
Dropping a view unbinds its name and leaves the definition dataset to a server-side cleanup job, so the two are separate events a caller may want to wait on. `drop_view_async` returns that job — the same shape `drop_materialized_view_async` and `drop_function_async` already use: a `202` carries the job id, a `200` (nothing was bound to the name) yields an already-finished job with no id, and any other success status is an error rather than a silent no-op. ## `drop_view` waits `drop_view` now awaits the job before returning, so a caller who does not want to think about cleanup gets the stronger guarantee: when it returns, the definition really is deleted. That is deliberately **different** from `drop_materialized_view` and `drop_function`, which return as soon as the name is unbound and document that content may still be deleting. The view API is the newer one, and waiting is the semantic worth having; the other two are left alone rather than changing behaviour already released. ## Surfaces `Database` trait, the remote client, `Connection`, and the Python and Node bindings — matching where `drop_materialized_view_async` is already exposed. Four client tests cover the accepted case reporting its job id, the nothing-bound case reporting a finished job, a `202` without a usable `job_id`, and an unexpected success status. |
||
 lancedb-gatefixer[bot]
|
75e71176cb |
fix(python): prevent BlobFile finalizer panics on Tokio workers (#4291)
## Cause `io.RawIOBase.__del__` checks `closed` and calls `close()` during GC. Both PyO3 methods entered `block_on`, which panics when GC runs on a LanceDB Tokio worker. ## Fix Track Python blob handle closure atomically so `closed` is synchronous. `close()` marks the handle closed immediately and, when called on a Tokio thread, schedules the underlying async cleanup without blocking that thread. Reads and seeks after close fail immediately; ordinary callers still wait for cleanup. ## Validation - Rebuilt the Python extension with `uv run --extra tests --extra dev maturin develop --extras tests,dev`. - Ran the blob test file and remote blob handle test: 69 passed, 1 skipped. - Ran `cargo fmt --all`, `ruff format .`, and `ruff check .`. Fixes #4283 <!-- lance-gatekeeper-fix:v1 agent=15a7bd545e63dea4b69faa0429f0a684 generation=1 --> Co-authored-by: Gatefixer <313497061+lancedb-gatefixer[bot]@users.noreply.github.com> |
||
|
Jack Ye
|
8541d6d9df |
feat: add view CRUD APIs (#4236)
A view is a named query a database stores and plans on every read. It
holds no rows, which is the whole difference from a materialized view.
## API
| Verb | Route |
| --- | --- |
| `create_view(name, query, namespace_path)` | `POST
/v1/view/{id}/create` |
| `describe_view(name, namespace_path)` | `POST /v1/view/{id}/describe`
|
| `drop_view(name, namespace_path)` | `POST /v1/view/{id}/drop` |
| `list_views(namespace_path)` | `GET /v1/namespace/{id}/view/list` |
On `Connection` and the `Database` trait, with the remote client, Python
(sync and async) and Node bindings. Local databases return
`NotSupported`: the server side is Sophon's, where a view is an object
of the database manifest.
`ViewDescription` carries the defining query, the database *and
namespace path* unqualified names in it resolve against, and the schema
the query resolved to. `create_view` returns one, so a caller has the
schema without a second call.
Both defaults travel with the view because it outlives the session that
declared it: the server re-plans the stored query on every read, so a
reader resolving an unqualified name against its own defaults would read
a different table. `default_namespace_path` crosses the wire as
`default_namespace`, a path like `namespace`, absent for the root.
There is no replace: a name already taken is an error, and changing a
view is a drop followed by a create, each authorized against what it
actually touches.
Querying a view stays SQL's job. There are no rows behind a view, so
there is no `open_view` returning a `Table`.
|
||
|
Jack Ye
|
814de30c5a |
feat: return a cleanup job from drop_function (#4237)
Dropping a Function can leave its content to a server-side cleanup job, so the name drop and the content deletion become separate events a caller may want to wait on. `drop_function_async` returns the unbind result alongside a `Job` for the cleanup, the same shape `drop_table_async` and `drop_materialized_view_async` already use: a `202` carries the job id, and a `200` — an inline deletion, or a name that was not bound — yields an already-finished job with no id. A `202` without a usable job id is rejected rather than silently reported as finished. `drop_function` keeps its `bool` result and now delegates, so nothing changes for callers that do not care when the content goes. Available on `Connection` in Rust and on both the sync and asyncio Python connections. |
||
|
Wyatt Alt
|
01ee01dbc8 |
feat: define a materialized view by its query, with Functions in FROM position (#4190)
A view definition was a structured record under a `kind` tag, one kind per query shape, and a Function returning `list<struct>` was about to add a third. That names shapes instead of describing a relation. A materialized view is now a relation defined by a query, stored as one canonical SQL string under a format number: ```sql SELECT columns FROM [ns.]table [, function(args) AS alias | , UNNEST(column) AS alias] [WHERE predicate] [LIMIT n] ``` Any other clause is refused at parse time. Older readers report the view as unrefreshable, the pre-format layouts still read, and a legacy view is rewritten on its next refresh that commits, rebuilt only where its raw text meant something else under lance's parser. A Function in FROM position yields one row per element it returns, as a table function does in any dialect. The server stages its list output in a hidden table and records that binding beside the query, which stays as the user wrote it; refresh scans the staging and unnests the column, the same operator as UNNEST over a list column the table already holds. Row ids repeat per element, so eviction and incremental append are unchanged. A local database refuses a Function in FROM position, since it has no executor. |
||
|
Wyatt Alt
|
5231d37f8d |
feat: list a table's per-row Function errors from the client (#4208)
A refresh running under a skip policy records each row it skipped, with the failing input and the error, but the client could not read that store: the server exposes it over SQL and, since recently, a REST route. A user who hit per-row failures still had to open a SQL session. `Table::function_errors` calls the route. The listing is table-addressed with optional job and column filters, the same addressing the SQL surface uses, so the two cannot disagree about what a table's errors are. The two non-record signals come back as their own fields rather than as rows: capped-fragment summaries, and whether the listing stopped at its limit. Local tables refuse rather than answer with an empty list. Python and Node expose the same call, with the same optional filters. |
||
|
Jonathan HsiehandClaude Opus 5
|
60a1b4c219 |
feat(secrets): named Secrets, bindings, and namespace addressing (#4150)
Adds the client half of database-scoped named Secrets: a Secret is a
name and
an opaque value stored by the service, and a Function binds one to the
environment variable its library already reads. Secrets are addressed by
a
namespace path plus a name.
The UDF body is unchanged and stays portable — it reads `OPENAI_API_KEY`
the
way it always did, and the binding is what puts a value there:
```python
db.create_secret("openai-prod", os.environ["OPENAI_API_KEY"])
function = db.create_function(
analyze_caption,
secrets=[
EnvVarSecret(secret_name="openai-prod", env_variable="OPENAI_API_KEY")
],
)
function.secret_bindings # the Secret's name, never its value
```
- `create_secret` / `alter_secret` / `list_secrets` / `describe_secret`
/
`drop_secret` on sync, async and remote connections, with the pyo3
binding
and the Rust client behind them. Each takes `namespace_path`
keyword-only,
defaulting to the root.
- **There is no read API, by construction rather than by policy** — no
code
path returns a stored credential, and `describe_secret` answers with
metadata only.
- `EnvVarSecret` is a pure local constructor: it contacts no server, so
it
cannot fail on a Secret that does not exist. It exists so that a bare
string
in that position — which would be a credential — is a `TypeError` rather
than a plausible-looking mistake that reads identically in a diff.
- `create_function(..., secrets=[...])` carries the bindings as
`secret_bindings`: a list of `SecretBinding` tagged by `kind`, so a
later
delivery mode is a variant rather than a sibling field. The value never
travels — it is resolved by the service when the Function runs, which is
what
lets a rotation reach columns already pinned to an older
FunctionVersion.
- A binding names its Secret as a `SecretReference` of `{name,
namespace_path}`
rather than one joined string, so no delimiter has to be excluded from
every
name and segment forever, and `ClientConfig.id_delimiter` cannot
contradict
an identity built on a fixed separator.
- A root namespace is omitted from the request body rather than sent
empty, so
a root request is byte-identical to one from a client that predates
namespaces. Tests pin it.
This is the client surface the design's §4 describes; the service side
lives in
sophon.
**Previously split across two PRs.** Namespace addressing was #4151,
stacked on
this one; it is folded in here so the Secret identity contract — name,
namespace path, and the binding that carries both — is reviewable as one
piece
rather than as a shape introduced and then replaced.
## Identifier safety, merged from #4189
**#4189 is merged into this branch**, so the client half of Secrets and
the
guards on the identity it puts in the URL are one PR. What it added:
- Components are checked where the identifier is built, before a request
is
constructed. `create_secret("../jobs", value)` no longer resolves to
`/v1/jobs/create` and delivers a credential-bearing body to a route with
none
of this one's body suppression.
- Each component is percent-encoded and joined by the delimiter, so
nothing
inside a component can end the path segment or add one.
- A component may not be empty, a relative segment (`.`, `..`, and their
`%2e`
spellings), or the delimiter itself — the three ways a component erases
a
boundary the split has to recover. `["prod", ""]` joined to `prod$`,
which
reads back as `["prod"]`.
- `$` is the only accepted `id_delimiter`, refused at client
construction.
`ClientConfig.id_delimiter` remains, since the identifier grammar comes
from
the Lance REST catalog standard, but a value that would produce
identifiers no
service splits the caller's way is now an error where it was written.
- One `build_object_identifier` and one character set serve tables,
namespaces,
Secrets, Functions and materialized views.
Components are checked for *addressability*, not a character set: the
name's
own grammar stays each object's own, so a catalog database keeps the `/`
that
`RemoteCatalog::validate_name` allows.
## Known shortcoming
`secret_bindings` is omitted from a registration body when empty, so a
client
that binds nothing sends what a client without bindings sends. When a
client
does bind a Secret and the service does not know the field, the field is
ignored: registration succeeds, the returned version carries no
bindings, and
the Function fails at execution with the variable unset, far from the
call that
asked for it.
`ServerVersion` is how this codebase refuses a feature the service is
too old
for, and it gates five features already. It does not gate this one: it
is held
per table, and registering a Function is a database-level call. Noted at
the
field in `remote/db.rs`; wiring the gate is follow-up work.
**Tests:** lancedb lib 1340 passed, `first_class_function_slice1` 9,
`first_class_function_slice2` 3, plus Python tests across both slices.
Rebased onto `main` after #4176 (OCI Function identity), #4191 (`.`/`..`
table
names) and #4195 (remote catalogs).
🤖 Generated with [Claude Code](https://claude.com/claude-code)
https://claude.ai/code/session_01UfmeJ533rQDnPBkMtjerV6
---------
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
|
||
|
Jack YeandXuanwo
|
6a07f88980 |
feat: add remote catalogs and Python and TypeScript bindings (#4195)
Add a `Catalog` trait and `RemoteCatalog` for managing databases,
exposed through Rust, synchronous/asynchronous Python, and TypeScript. A
remote catalog represents the server's root namespace, and each database
is one child namespace. Create/connect return ordinary LanceDB
connections, so existing table APIs work unchanged.
## Rust API
`Catalog` is an object-safe async trait with `create_database`,
`connect_database`, `list_databases`, and `drop_database`. Backend
create/connect methods return `Arc<dyn Database>`; the public
`CatalogConnection` wraps them as `Connection` values and shares its
embedding registry with those connections. `RemoteCatalog` implements
the trait; `connect_catalog` is the convenience builder, available with
the `remote` feature.
```rust
use lancedb::catalog::{
CreateDatabaseRequest, DropDatabaseRequest, ListDatabasesRequest,
};
let catalog = lancedb::connect_catalog("https://my-server.example")
.api_key("my-api-key")
.execute()
.await?;
let db = catalog.create_database(
CreateDatabaseRequest::new("analytics").exist_ok(true),
).await?;
let connected = catalog.connect_database("analytics").await?;
let page = catalog.list_databases(
ListDatabasesRequest::default().limit(20),
).await?;
// page.databases: Vec<String>; page.page_token: Option<String>
catalog.drop_database(
DropDatabaseRequest::new("analytics").ignore_missing(true),
).await?;
```
Create/drop also accept a plain name for default behavior, e.g.
`catalog.create_database("analytics").await?`. Existing names fail
creation unless `exist_ok` is enabled; missing names fail drop unless
`ignore_missing` is enabled. Drop always requires an empty database.
## Python API
```python
import lancedb
catalog = lancedb.connect_catalog(
"https://my-server.example", api_key="my-api-key"
)
db = catalog.create_database("analytics", exist_ok=True)
connected = catalog.connect_database("analytics")
page = catalog.list_databases(limit=20)
# page.databases: list[str]; page.page_token: Optional[str]
if page.page_token is not None:
next_page = catalog.list_databases(limit=20, page_token=page.page_token)
catalog.drop_database("analytics", ignore_missing=True)
```
`connect_catalog` returns `Catalog`; create/connect return the existing
`DBConnection` API. The async equivalent is `catalog = await
lancedb.connect_catalog_async(...)`, returning `AsyncCatalog`; await
each of the same four methods, with create/connect returning
`AsyncConnection`.
## TypeScript API
```typescript
import { connectCatalog } from "@lancedb/lancedb";
const catalog = await connectCatalog("https://my-server.example", {
apiKey: "my-api-key",
});
const db = await catalog.createDatabase("analytics", { existOk: true });
const connected = await catalog.connectDatabase("analytics");
const page = await catalog.listDatabases({ limit: 20 });
// page.databases: string[]; page.pageToken?: string
if (page.pageToken !== undefined) {
const nextPage = await catalog.listDatabases({
limit: 20, pageToken: page.pageToken,
});
}
await catalog.dropDatabase("analytics", { ignoreMissing: true });
```
Create/connect return the existing `Connection` API. All four methods
are asynchronous.
## REST mapping
All paths below are relative to the catalog endpoint. `{name}` is the
logical database name encoded as one URL path component. The default
namespace delimiter is `$`, so the root identifier is encoded as `%24`.
| Catalog operation | Existing REST route | Request |
| --- | --- | --- |
| `create_database(name)` | `POST /v1/namespace/{name}/create` |
`{"mode":"Create"}`; `exist_ok=true` sends `{"mode":"ExistOk"}` |
| `connect_database(name)` | `POST /v1/namespace/{name}/describe` |
`{}`; verifies existence before returning a scoped connection |
| `list_databases(...)` | `GET /v1/namespace/%24/list` | Optional
`limit` and `page_token` query parameters |
| `drop_database(name)` | `POST /v1/namespace/{name}/drop` |
`{"mode":"Fail","behavior":"Restrict"}`; `ignore_missing=true` changes
mode to `"Skip"` |
For example, database `team/search` uses
`/v1/namespace/team%2Fsearch/create`. A paginated root listing can use
`/v1/namespace/%24/list?limit=20&page_token=a%2Fb`. The list response
retains the existing namespace wire shape,
`{"namespaces":["analytics"],"page_token":"next"}`; the SDK exposes
`namespaces` as `databases` and preserves the opaque continuation token.
An absent or empty token ends pagination. Page limits must be between 1
and 2147483647. Create/drop accept a namespace JSON response or HTTP
204.
Catalog management requests omit both `x-lancedb-database` and
`x-lancedb-database-prefix`, including values supplied through static or
dynamic headers. Returned database connections set `x-lancedb-database`
to the exact logical name and keep independent scope. API keys, OAuth or
dynamic authentication, client settings, table read consistency
settings, and an optional SQL endpoint override carry over to those
connections. OAuth cannot be combined with an API key or a custom header
provider.
For SQL through an HTTPS catalog, configure the existing SQL endpoint
contract with Rust
`.sql_host_override("grpc+tls://sql.example.com:10026")` or Python
`sql_host_override="grpc+tls://sql.example.com:10026"`. TypeScript
catalog options expose the same setting as `sqlHostOverride`. It is
inherited by created/connected databases, retained by Python connection
serialization, and initialized lazily when SQL is executed.
Create HTTP 409 maps to `DatabaseAlreadyExists`; connect/drop HTTP 404
maps to `DatabaseNotFound`, except that `ignore_missing` suppresses a
missing-database drop. Other server errors propagate. The server
enforces restricted deletion; the client never requests cascading
deletion.
Database names preserve literal slashes as part of one name. They must
be nonempty ASCII, with no control characters, surrounding whitespace,
or configured namespace delimiter, and cannot be `.` or `..`. Endpoints
must be HTTP(S) URLs without embedded credentials, query parameters, or
fragments.
## Scope
This PR adds the client API and reuses existing namespace endpoints.
Local catalogs, `__catalog` storage, location generation/sanitization,
and `__manifest` lifecycle support remain deferred; the Lance dependency
is unchanged.
The PR also runs macOS Node tests serially to avoid existing
resource-contention timeouts reproduced across recent main runs.
---------
Co-authored-by: Xuanwo <github@xuanwo.io>
|
||
|
Jack YeandXuanwo
|
f3ef21b8ca |
feat: use oauth2 crate for OAuth with configurable client auth (#4181)
Stacked on #4173 (`jack/restore-oidc-flows`, base branch mirrored to this repo so the diff shows only this change); context from review: https://github.com/lancedb/lancedb/pull/4173#issuecomment-5674048100. Rebase to `main` once #4173 and #4179 merge. ## What moved to the `oauth2` crate (5.0, no default features) - Authorization URL generation and CSRF state (`authorize_url`, `CsrfToken`) - PKCE S256 challenge/verifier generation and code exchange - Client-credentials, authorization-code, refresh-token, and device-code grant request construction - Device authorization request and the device token polling loop (`authorization_pending`, `slow_down` +5s, expiry deadline, denial, network backoff capped at 10s) - Standard success/error response parsing (`RequestTokenError`) - Token-endpoint client authentication and standards-compliant parameter encoding (RFC 6749 2.3.1 Basic encoding) LanceDB keeps ownership of OIDC discovery (compared `openidconnect`: no measurable win for our 3-field metadata + strict validation, at real dependency cost), HTTPS-or-loopback endpoint enforcement, the loopback callback server, browser/stderr prompts, token caching and refresh orchestration, and the dedicated hardened Azure IMDS source, which is unchanged. ## Client authentication methods New `ClientAuthMethod` enum (`none` | `client_secret_basic` | `client_secret_post`), exposed in Rust, Python, and Node. Unset resolves to `client_secret_basic` when a secret is present (RFC 6749 2.3.1 recommendation and the normal Okta confidential-app default, so a default Okta app works without weakening its configuration) and to `none` for public clients (PKCE/device). Explicit `none` with a secret, or basic/post without one, is rejected. The method applies to client credentials, code exchange, refresh, and device requests. Deliberate behavior change: confidential clients previously always sent the secret in the POST body; they now default to Basic (Keycloak accepts both). No `audience`/`resource` parameters were added: the supported target is an Okta custom authorization server with the API audience configured server-side, so client-provided audience parameters are unnecessary; `add_extra_param` support exists if a concrete provider contract ever needs them. ## Device polling behavior changes (deliberate, tested) - The first token poll now happens immediately rather than after one interval (RFC 8628 allows both). - Transient failures (HTTP 429, 5xx, `temporarily_unavailable`, network errors) now retry with exponential backoff capped at 10s instead of retrying at the fixed interval; polling never spins faster than once per second even if a server reports a zero interval. ## Security and compatibility - Issuer and discovered endpoints (and device verification URIs) still require HTTPS except explicit loopback HTTP, enforced before any crate URL type is built - Token HTTP client keeps the hardened redirect policy that refuses insecure redirect targets; regression test added - Errors never embed raw response bodies (avoids leaking tokens through parse failures); all credential types stay redacted in Debug - Transient conditions (429/5xx/`temporarily_unavailable`) remain retryable in device polling and hard errors elsewhere; refresh keeps rotation and reauthentication semantics - Existing public APIs stay source-compatible except the added `OAuthConfig.client_auth_method` field ## Tests Rust: client-auth methods across code exchange/refresh/client-credentials/device (none/basic/post), auth-method resolution and validation, transient device retries, denial/expiry, redirect rejection, malformed-response leak check, PKCE URL assertions, redaction. Python and Node: enum values, conversion, unknown-method errors, config defaults. Manual Okta validation recipe (no automated Okta credentials): create a custom authorization server with an API audience, one confidential web app (Basic) for authorization-code, one native app (PKCE, no secret), one native device app; point `issuer_url` at the custom server, set `client_auth_method` only for the POST-required case; verify token acquisition, refresh after expiry, and `x-lancedb-credential-type: oidc` against a LanceDB deployment. Never commit tenant URLs or secrets. Co-authored-by: Xuanwo <github@xuanwo.io> |
||
|
Xuanwo
|
161f81276d |
chore: update lance dependency to v13.0.0-beta.3 (#4197)
Update the Rust workspace and Java Lance dependencies to [v13.0.0-beta.3](https://github.com/lance-format/lance/releases/tag/v13.0.0-beta.3), which includes the nullable-list encoding fix in lance-format/lance#9268. Also resolve existing strict Clippy diagnostics in crate-private OAuth modules and the Python token-cache conversion, without changing effective visibility. Validated the rebuilt Python SDK with nullable and nested lists: Match/Phrase searches preserve document coordinates before and after appending data and optimizing the table. |
||
 Colin Patrick McCabe
|
3a1d3be256 |
feat(oidc): support resource and audience (#4193)
Support configuring resource and audience for OAuth authorization, token exchange, and refresh requests. |
||
 Bruno RamirezandClaude Sonnet 5
|
3fca33fcb5 |
fix: shut down the shared Tokio runtime on interpreter exit (#4175)
Short-lived Python processes using this client can occasionally crash with SIGABRT during interpreter shutdown, even after every operation they ran completed successfully. The cause is the shared Tokio runtime backing every async call: it's never told to shut down at normal process exit, only reset (and deliberately leaked) on `fork()`. Its worker threads keep running, uncoordinated with the interpreter, until the process actually ends, and if one is mid-task exactly as `Py_Finalize` starts tearing down interpreter state, it can panic on state that's already gone. That panic happens on a background thread with no PyO3-wrapped call frame to catch it, so Rust aborts the whole process instead of just failing that one call. This PR gives the runtime a coordinated, bounded shutdown by registering a Python `atexit` callback that runs while the interpreter is still fully valid. Getting the exit lifecycle right took a few rounds of review. Earlier versions freed the runtime as soon as `Arc::strong_count` looked low, but that's the wrong signal — it reflects who currently holds a reference, not who's logically still in flight. That mistake showed up three ways: a caller could dereference memory already freed out from under it; an install already in progress could finish invisibly after `shutdown()` had already decided there was nothing to do; and a spawned task could end up as the final owner of the `Runtime`, so completing it dropped the runtime from inside one of its own worker threads, which Tokio itself forbids and panics on (this reproduced unprompted in this branch's own test suite). Fixing all three meant replacing reference-count-based tracking with an explicit counter of in-flight top-level calls that `shutdown()` waits on directly. This was accomplished with the following changes: - The runtime lives in an `ArcSwapOption<Tagged>`, where `Tagged` pairs the `Runtime` with the fork generation it was built in. - An `OUTSTANDING` counter, incremented before a top-level `spawn`/`spawn_blocking`/`block_on` call does anything else and decremented only once it has truly finished (via an `OutstandingGuard` token that carries no reference to the runtime), is what `shutdown()` waits on — not `Arc::strong_count` or whether the slot looks empty. This closes the install-race and makes it impossible for a task's own completion to be the runtime's final drop. - Once `shutdown()`'s bound elapses, it stops waiting and attempts retirement anyway, rather than returning with the runtime and its workers left fully alive. - `spawn`/`spawn_blocking` use `Handle::try_current()` to pin any nested spawn (`future_into_py` spawns a task that itself spawns a second one for the real work) to whichever runtime is already executing it, so a reclaim landing between the two calls can't split one logical operation across two different runtime instances. - The fork-child handler now only bumps a bare `GENERATION` counter — no `ArcSwapOption` call of any kind from that context, since `swap`/`compare_and_swap` do real reader-reconciliation work (thread-local state, potentially an allocation) that isn't safe in a forked child. `get_runtime()` compares its installed runtime's generation against the live counter from ordinary context and rebuilds on a mismatch. - Registered `shutdown_runtime` as a Python `atexit` callback in the `_lancedb` module init, running with the GIL released (`Python::detach`) since the bounded wait could otherwise deadlock against any in-flight task that itself needs the GIL. ### Testing - Unit tests in `runtime.rs` cover: shutdown with no runtime created, shutdown after use and lazy rebuild afterward, calling shutdown twice in a row, a concurrent stress test racing many threads against shutdown, a nested-spawn test reproducing `future_into_py`'s own spawn-within-a-spawn shape under concurrent shutdown, a test confirming a top-level task in flight survives a concurrent shutdown reclaim, and a test forcing the install-vs-shutdown race directly. - Built the wheel and ran a concurrent reproducer (many threads hammering the client while `atexit` fires) over 100 times with no hangs or crashes, plus a 30-second-join variant and repeated runs of a short-lived process confirming clean exits with no added latency. --------- Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com> |
||
|
Jack Ye
|
f12996557f |
feat(remote): support materialized view APIs (#4180)
## Summary
Align the experimental materialized-view HTTP transport with the
equivalent Table API shape and add remote materialized-view support
across Rust, Python, and TypeScript. This is an intentional breaking
change to the experimental materialized-view surface.
Materialized-view creation performs an initial refresh by default. The
create endpoint returns `202 Accepted` with `{ "job_id": "..." }`;
blocking SDK creation waits for that job before returning a populated
view. `with_no_data` / `withNoData` explicitly creates only the
definition and empty backing table.
## Route comparison
| Operation | Materialized-view API | Equivalent Table API |
| --- | --- | --- |
| Create | `POST /v1/materialized_view/{id}/create` | `POST
/v1/table/{id}/create` |
| Describe/open | `POST /v1/materialized_view/{id}/describe` | `POST
/v1/table/{id}/describe` |
| List | `GET /v1/namespace/{id}/materialized_view/list` | `GET
/v1/namespace/{id}/table/list` |
| Refresh | `POST /v1/materialized_view/{id}/refresh` | asynchronous
Table mutation pattern |
| Drop | `POST /v1/materialized_view/{id}/drop` | `POST
/v1/table/{id}/drop` |
Create, describe, refresh, and drop identify the target in the singular
item path instead of duplicating it in the request body. Create and drop
require `202 Accepted` with a valid job ID. List is a namespace-scoped
GET with opaque pagination tokens. The Rust list API now returns view
names, matching Table listing and the existing Python and TypeScript
APIs.
## Python API changes
| Operation | Synchronous API | Asynchronous API | Table/job pattern |
| --- | --- | --- | --- |
| Create and wait | `DBConnection.create_materialized_view(...)` |
`await AsyncConnection.create_materialized_view(...)` | Returns a
materialized-view handle after its initial-population job finishes |
| Submit create | `DBConnection.create_materialized_view_async(...) ->
Job[None]` | `await AsyncConnection.create_materialized_view_async(...)
-> AsyncJob[None]` | Matches job-returning Table mutations such as
`create_index_async` |
| Open | `DBConnection.open_materialized_view(...)` | `await
AsyncConnection.open_materialized_view(...)` | Opens the backing Table
plus its definition |
| List | `DBConnection.list_materialized_views()` | `await
AsyncConnection.list_materialized_views()` | Returns names like Table
listing |
| Refresh and wait | `MaterializedView.refresh(...)` | `await
AsyncMaterializedView.refresh(...)` | Returns the typed refresh result
after the job finishes |
| Submit refresh | `MaterializedView.refresh_async(...) ->
Job[RefreshMaterializedViewResult]` | `await
AsyncMaterializedView.refresh_async(...) ->
AsyncJob[RefreshMaterializedViewResult]` | Matches
`Table.refresh_column_async`; remote job handles expose the server job
ID |
| Drop | `DBConnection.drop_materialized_view(...)` | `await
AsyncConnection.drop_materialized_view(...)` | Matches blocking
`drop_table` |
| Submit drop | `DBConnection.drop_materialized_view_async(...) ->
Job[None]` | `await AsyncConnection.drop_materialized_view_async(...) ->
AsyncJob[None]` | Matches `drop_table_async`; remote handles expose the
server cleanup job ID |
The materialized-view handle exposes its backing Table through `.table`,
so normal Table query, search, and index APIs apply. Definition lookup
and refresh are backend-aware rather than depending on local schema
metadata. TypeScript exposes the equivalent blocking/job drop pair as
`dropMaterializedView` and `dropMaterializedViewAsync`.
|
||
|
Jack YeandXuanwo
|
2f88b71c21 |
feat: add persistent OAuth token cache and session APIs (#4182)
Stacked on #4173 (diff includes it until that merges; will rebase after). Addresses the token-cache part of [Colin's review](https://github.com/lancedb/lancedb/pull/4173#issuecomment-5674048100). Adds an explicit, opt-in persistent OAuth token cache shared by Rust, Python, and Node clients, plus `login` / `status` / `logout` session APIs, so short-lived processes (CLIs, scripts, notebooks) reuse one session instead of restarting a browser or device flow on every start. - **Opt-in and minimal**: existing callers stay memory-only and lazy. Only refresh tokens are persisted (never access tokens, never client secrets), so there are no local token-expiry decisions to get wrong when clocks move. Each process start performs one silent refresh grant. - **Hardened file backend**: private directory (`0700`), per-record files (`0600`), owner validation, symlink rejection, and atomic `rename` replacement. Corrupt, truncated, unknown-version, or permission-invalid records fail with actionable errors naming the file. Native keyring backends were evaluated (keyring crate routes Linux through D-Bus/zbus: heavy deps, headless/CI flakiness) and are deferred; the file store is the explicit opt-in, not a downgrade from a keyring. - **Cache key**: SHA-256 of the canonical identity (issuer, client ID, sorted/de-duplicated scopes, flow, public/confidential), so no secret appears in a filename and distinct identities never collide. Versioned record schema (`version: 1`). One record per identity: last login wins, documented. - **Cross-process rotation locking**: per-key `fs4` file lock (`flock` / `LockFileEx`) around the refresh critical section — acquire, reread the durable record, refresh exactly once, atomically store the rotated refresh token, release. The OS releases locks on process death, so crashes cannot strand stale locks. Only confirmed `invalid_grant`/`invalid_token` deletes a record and reauthenticates; transport, 5xx, 429, and parse failures retain it. - **Session APIs**: `OAuthSession::login/status/logout` in Rust, `lancedb.remote.OAuthSession` (async) in Python, `OAuthSession` class in Node. `status` returns non-secret metadata only. `logout` removes only the local credential — provider revocation (RFC 7009) is a deliberate follow-up, and local logout never terminates browser SSO. Azure managed identity is rejected for persistence (machine identity stays in memory); client credentials have nothing refreshable to persist and stay memory-only. - No CLI binary exists in this repo, so this ships library APIs plus doc examples in all three languages. Tests: Rust unit + mock-IdP integration (cache-key canonicalization/separation, record versioning/corruption/truncation/symlink/owner/perms, lock serialization + release, two concurrent providers proving no `invalid_grant` and correct rotation, transient-failure retention, `invalid_grant` delete + reauthenticate, login/status/logout lifecycle, client-credentials no-op, IMDS rejection, secret redaction); Python lifecycle + a true two-subprocess cross-process reuse test (second process refreshes once, never hits the device endpoint); Node lifecycle + device-flow login test. Local builds were skipped in development; CI validates all bindings. --------- Co-authored-by: Xuanwo <github@xuanwo.io> |
||
|
Xuanwo
|
255da8a854 |
fix(python): resolve native job types in API docs (#4170)
Native job metadata types report `builtins` as their module, so Griffe cannot resolve the public `lancedb.job` re-exports and the Python API reference build fails. Set the PyO3 module metadata for `JobInfo`, `JobDescription`, and `JobFailureInfo`, and cover import resolution in the existing package metadata tests. Reproduced the failure and validated the fix with the docs CI toolchain (`griffe==0.49.0`, `mkdocstrings==0.25.2`, and `mkdocstrings-python==1.10.9`). After rebuilding the native extension, the full `PYTHONPATH=. mkdocs build` succeeds and all three classes and their public members appear in the generated reference. |
||
 Will JonesandClaude Sonnet 5
|
1da5876870 |
ci: add spell checking (#4148)
Adds [typos](https://github.com/crate-ci/typos) as a CI check and pre-commit hook, the same way Lance does it, so misspellings like the ones fixed in #4146 get caught automatically going forward. This also fixes the misspellings `typos` found across the repo (Rust, Python, TypeScript source, comments, and generated docs), and adds a small `.typos.toml` with `extend-words` entries for terms that are correct but look like typos: `AKS` (Azure Kubernetes Service), `RabitQ` (a real quantization algorithm name), `mmaped` (the actual name of a `candle-core` API we call), and `Writeable` (from Python's `_typeshed.WriteableBuffer`). Third-party license files are excluded. Fixes #4147 Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com> |
||
|
Jack Ye
|
21f11b4463 |
feat!: replace get_job/job_history with describe_job/query_job_events (#4130)
A 1M-row column refresh over 200 fragments produced no visible result,
and the client could only ever say `"running"`. Everything needed to
diagnose it already existed server-side — the job registry records a
`claim`/`claim_complete` pair per fragment carrying `rows_processed` —
but none of it was reachable.
## Before
Four ways to ask about a job, none of which told you much.
```python
job = table.refresh_column_async("embedding")
job.status() # "running". That was the entire debug surface.
db.get_job(job_id) # state, and a spec. No result, no progress.
db.job_history(job_id) # raw record batches, no limit, no filter
db.job(job_id) # a handle that knew nothing
```
## After
Open a job the way you open a table; the handle answers everything.
```python
job = db.open_job(job_id) # raises JobNotFoundError if there is no such job
```
```python
>>> print(job)
Job(
id='job-1',
state='failed',
job_type='refresh_column',
creation_ms=1757000000000,
spec={
"column": "embedding",
"num_workers": 4
},
failure=JobFailureInfo(phase='execute', message='worker died', retryable=True),
)
```
Individual fields are there too — `job.state`, `job.job_type`,
`job.creation_ms`, `job.spec`, `job.result`, `job.failure` — and
`job.result` carries `rows_assigned` / `rows_failed` as soon as the job
succeeds, with no `wait()` required.
Per-fragment progress *while it is still running*:
```python
done = job.events(filter="state = 'claim_complete'", limit=10_000)
done.column("rows_processed").to_pylist() # [5000, 5000, ...]
```
The handle an async action returns is the same object, one `refresh()`
away:
```python
job = table.refresh_column_async("embedding")
job.refresh()
job.state, job.result
```
TypeScript is the same experience, down to `console.log`:
```ts
const job = await db.openJob(jobId); // rejects if there is no such job
console.log(job); // same multi-line layout
job.state; job.jobType; job.spec; job.result; job.failure;
const done = await job.events({ filter: "state = 'claim_complete'", limit: 10_000 });
```
## Why each piece matters
- **A result without waiting.** `rows_assigned` / `rows_failed` used to
live only on the terminal result, so a job that never terminated
reported nothing at all.
- **`limit`.** The server caps event rows at 1000 and truncates without
saying so, which silently hid most of a 200-fragment job's history.
- **`filter`.** `claim_complete` rows carry per-claim `rows_processed` —
the only progress signal that exists mid-flight.
- **Events outlive the worker.** They live in the job registry, not in
pod logs that vanish with the pod.
- **One place to ask.** `open_job` replaces `describe_job`,
`query_job_events` and `job`, so a question about a job has one answer
instead of one per calling location.
- **A missing job is an error, not a `None`.** The common case is a job
id copied out of a log, where absence is the surprise worth raising —
and it matches `open_table`.
- **Printing is the debug surface.** Every field on its own line, JSON
payloads keeping their structure. An unrefreshed handle stays on one
line, because there is nothing to lay out.
- **In-process jobs say so.** A local refresh reports `state` and leaves
the rest null rather than inventing fields it has no record for.
`list_jobs` and `cancel_job` stay as they were: one lists, the other is
a one-shot action that should not need a describe first.
## Breaking
All shipped in 0.38.0. No deprecated aliases.
| Was | Now |
| --- | --- |
| `Connection.get_job` → `describe_job` | `Connection.open_job` returns
a populated `Job`, or raises |
| `Connection.job_history` → `query_job_events` | `job.events(...)` |
| `Connection.job` | `Connection.open_job` |
| Python events → `List[pa.RecordBatch]` | `pa.Table` |
| `JobDescription.spec_json` / `.result_json` | internal; use `job.spec`
/ `job.result` |
Node's `Job` is now a TypeScript class wrapping the native handle, so it
returns an Arrow table and parsed values like Python does. New
`Error::JobNotFound` / `JobNotFoundError`; the three job exceptions are
now in the Python API reference.
|
||
|
Jack Ye
|
e639b1b650 |
feat: add asynchronous remote SQL queries (#4070)
## Summary
Add SQL execution to remote LanceDB connections. On the standard
synchronous connection, `execute_query` waits for the initial result
stream and returns its Arrow reader. `execute_query_async` is called
without Python `await` and immediately returns a query handle for status
inspection, streaming, or cancellation. Local databases report that SQL
is not supported.
The transport and query lifecycle live in Rust. Python exposes
native-backed synchronous and asynchronous connection methods and query
wrappers; it does not use PyArrow's Flight client.
## User experience
The standard synchronous connection supports both direct reads and
background query execution:
```python
db = lancedb.connect(
"db://analytics",
api_key="ldb_...",
sql_host_override="grpc+tls://sql.example.com:10026",
)
# Direct execution waits only until the initial result stream is available.
# Later batches continue streaming as the query progresses.
reader = db.execute_query(
"SELECT * FROM events",
default_namespace_path=["production"],
)
for batch in reader:
print(batch.num_rows)
# Background execution returns a query handle immediately. Despite the
# `_async` suffix, no Python `await` is needed on a synchronous connection.
query = db.execute_query_async("SELECT * FROM events")
print(query.id)
description = db.describe_query(query.id)
print(description.status)
print(description.progress)
print(description.expires_at)
# Start reading as soon as the service advertises partial results. The reader
# continues polling and yields newly available record batches until the query
# and all result endpoints are complete.
reader = query.reader()
for batch in reader:
print(batch.num_rows)
# Or cancel a different still-running query. Its status becomes "cancelling"
# while the server is still working, then "cancelled" once confirmed.
cancelled_query = db.execute_query_async("SELECT * FROM large_events")
cancelled_query.cancel()
```
The less commonly used asynchronous connection exposes the same
operations as coroutines:
```python
async_db = await lancedb.connect_async(
"db://analytics",
api_key="ldb_...",
sql_host_override="grpc+tls://sql.example.com:10026",
)
query = await async_db.execute_query_async("SELECT * FROM events")
async for batch in await query.reader():
print(batch.num_rows)
```
The UUIDv7 query id is scoped to the connection that submitted it. The
connection retains lightweight shared query state used by
`query.describe()` and `db.describe_query(query.id)`; the id does not
encode SQL or a Flight continuation token and is not a cross-connection
resume token. Abandoned state has bounded retention, and terminal state
remains available briefly.
Unqualified table names use the connected database and the `public`
namespace by default. `default_namespace_path` accepts a list such as
`["production", "events"]`. SQL can still use qualified names to
reference other databases and namespaces available to the deployment.
## Design
- Uses Arrow Flight `PollFlightInfo` for submission and long polling,
`DoGet` for results, and `CancelFlightInfo` for cancellation. Each
`PollInfo.info` is treated as the cumulative set of currently available
endpoints, so advertised tickets are consumed once and batches can be
delivered before execution is complete.
- Serializes result completion and cancellation into one lifecycle. A
server-accepted request reports `cancelling` and wakes blocked
status/result work; a later retry can confirm `cancelled`. Result
retrieval is rejected after cancellation is accepted, while cancellation
after a result was already delivered is a no-op.
- Assigns a time-ordered UUIDv7 connection-scoped query id and retains
only shared evolving lifecycle state, keeping SQL, Flight continuation
tokens, and Arrow result data out of public ids and the registry.
- Leaves admission control to the server while honoring server
expiration and a local fallback retention window for abandoned entries.
- Retains terminal ids for five minutes so they remain available for
connection-level description.
- Keeps one lazily initialized SQL client on each remote database
connection and attaches fresh authentication, routing, namespace, and
request metadata to every operation.
- Applies the configured overall timeout to each execution, description,
reader, and cancellation operation. A result reader carries one absolute
deadline from `reader()` through the end of streaming; connect and read
timeouts continue to bound their individual phases.
- Returns a bounded, backpressured, single-consumer Arrow stream rather
than collecting the full result in memory. Dropping the reader stops
downloading but does not implicitly cancel the server query.
- Preserves typed schemas for empty result sets through the stream
schema.
- Accepts Flight result messages up to 1 GiB so a valid row containing a
large blob, string, or vector is not rejected by tonic's 4 MiB default
receive limit.
- Supports the Python client first while keeping the authoritative
implementation in the Rust core.
|
||
|
Xuanwo
|
193c5e3458 |
feat: add list_functions client APIs (#4108)
Function registration and exact lookup are exposed through the SDK, but clients cannot discover published versions even though the server provides `POST /v1/functions/list`. Add Rust and Python sync/async `list_functions()` APIs that return typed `FunctionVersion` values. The remote client requests canonical definitions and follows opaque page tokens until the listing is complete, including empty intermediate pages, while preserving the server's name/version ordering. Local databases retain the existing Function-catalog unsupported error. The SDK consumes protocol pagination internally so callers receive the complete catalog rather than handling server-specific page tokens. |
||
|
lancedb-gatefixer[bot]andXuanwo
|
19232f9c50 |
fix: preserve duplicate take offsets (#4024)
## Summary - preserve repeated table offsets without adding a public ordering guarantee - retain exact requested ordering in identity and persisted permutations - cover local, projected, multi-batch, and mocked-remote query paths ## Root cause Take queries lowered offsets to a set-like IN predicate and discarded repeated occurrences. Persisted permutation loading also compared the distinct base-table result count with the requested occurrence count, rejecting repeated row IDs before its existing reordering step could expand them. ## Fix The shared take-query path now deduplicates the predicate for efficient lookup, requests row-offset metadata internally, and expands each matching row to the requested multiplicity in backend result order. An internal opt-in keeps exact requested order for identity PermutationReader reads, while persisted permutations continue using their existing ordering map. ## Validation - cargo test --quiet --features remote --tests - cargo check --quiet --features remote --tests --examples - cargo clippy --quiet --features remote --tests --examples - targeted Python local and mocked-remote regression tests - exact issue reproduction Fixes #2820 <!-- lance-gatekeeper-fix:v1 agent=75acf840afa6f4be4bff98b567b504bd generation=1 --> --------- Co-authored-by: Gatefixer <313497061+lancedb-gatefixer[bot]@users.noreply.github.com> Co-authored-by: Xuanwo <github@xuanwo.io> |
||
|
Xuanwo
|
c196d033e9 | feat: add drop_function client APIs (#4097) | ||
|
lancedb-gatefixer[bot]andXuanwo
|
25645d82d4 |
feat(python): accept expressions in update filters (#3876)
## Summary - allow Python sync, async, and remote table updates to accept type-safe `Expr` filters - serialize expression filters before invoking the existing update implementation - cover numeric-looking text and apostrophe-containing text in sync and async regression tests ## Root cause `Table.update` was the remaining Python write path that required callers to construct a raw SQL predicate. Dynamic text interpolated without SQL literal encoding could therefore be parsed as an integer, float, or unterminated string instead of Utf8. The expression API already encodes literals safely for query and delete filters. ## Validation - `cd python && .venv/bin/pytest python/tests/test_table.py::test_update_async python/tests/test_table.py::test_update_expr_filter_literals_async python/tests/test_table.py::test_update python/tests/test_table.py::test_update_expr_filter_literals -q` - `cd python && .venv/bin/pytest python/tests/test_expr.py -q` - `cd python && .venv/bin/ruff format --check .` - `cd python && .venv/bin/ruff check .` Fixes #1869 <!-- lance-gatekeeper-fix:v1 agent=01f1e7b69c65e8b6d3b3c1e1a7918179 generation=1 --> --------- Co-authored-by: Gatefixer <313497061+lancedb-gatefixer[bot]@users.noreply.github.com> Co-authored-by: Xuanwo <github@xuanwo.io> |
||
|
Xuanwo
|
b78f2a5044 |
feat: expose list-element FTS document granularity (#4050)
## Summary LanceDB could not request Lance's list-element FTS document granularity through Python or Remote APIs, and generic nested-field resolution exposed Arrow's internal `item` segment instead of the public field path. This exposes typed `row | list_element` configuration for Python FTS index creation and match/phrase queries, preserves `_doc_index`, and keeps nested FTS paths public (for example, `docs.content`). Remote list-element requests require server API version 0.6.0 so older servers cannot silently execute them with row semantics; explicit row requests remain compatible. ## Compatibility Omitted index and query parameters retain row granularity. Remote row index creation omits the new wire field. ## Tracking [ENT-2342](https://linear.app/lancedb/issue/ENT-2342/expose-list-element-fts-document-granularity-end-to-end) |
||
 DrewandXuanwo
|
a614400755 |
feat: accept blob URI writes (#3954)
#3528 added blob declarations and binary coercion. String values were still rejected. They now coerce to the blob `uri` child. ```python table.add([{"id": 1, "image": "s3://bucket/media/cat.jpg"}]) payload = table.fetch_blobs("image", table.search().to_arrow()) ``` A URI under a registered base writes with no extra options. An unregistered URI fails. `allow_external_blob_outside_bases` is a local escape hatch that stores an absolute URI. It does not register a base. Remote `add` rejects that flag before making a request. String input still coerces and is sent as a `uri` struct. `add_bases` is a follow-up. `merge_insert` does not coerce string blob input. ### Testing - `cargo test -p lancedb --test blob_integration` - `cargo test -p lancedb blob_coerce` - `cargo test -p lancedb --features remote --lib add_rejects_external_blob_flag add_string_blob_becomes_uri_struct` - `cd python && uv run --extra tests pytest python/tests/test_blob.py -k uri -q` Co-authored-by: Xuanwo <github@xuanwo.io> |
||
|
Xuanwo
|
b0dae5eb0b |
feat: return typed refresh job results (#4013)
## Problem `refresh_column_async` returned a unit-result job even though durable refresh jobs carry a canonical terminal result. Python callers could not obtain row counts or source and published versions through the public `Job` API, and local and remote refresh jobs exposed different result semantics. ## Behavior `refresh_column_async` now returns `Job[RefreshColumnResult]` for local and remote tables. The general typed-job bridge binds each endpoint to its public result model while preserving unit-result jobs and existing status, wait, cancel, and timeout behavior. A local no-op refresh reports no published version. The Node.js API continues to resolve `wait()` as `void`; its binding erases the Rust result type internally to preserve the existing public contract. ## Ownership and integration boundary LanceDB owns the language-neutral `Job<T>` contract and language-binding decode. Sophon owns production and durable persistence of terminal payloads. Sophon #7348 and #7378 now publish the canonical refresh result for Function-backed and expression-backed refresh jobs, respectively. The remote client fixture matches the merged server schema; live deployment and end-to-end demo acceptance remain separate rollout checks. |
||
|
Drew Gallardo
|
e98d8ac685 |
feat!: rename branch merge to cherry_pick (#3986)
This PR is a **breaking** rename of #3686. merge reads like git merge w/ three-way, replay history, combine two lines of work. That is not this API. This call takes one additive change on a branch and lands it on main. New column, including a blob column. Main's existing columns are not rewritten. If it cannot land, you get `status="failed"` and `diff.errors`, not a merge conflict to resolve. Cherry-pick is terminology that aligns more with that. ```python table = db.open_table("images") table.branches.create("exp") exp = table.branches.checkout("exp") exp.add_columns({"tag": "cast('draft' as string)"}) diff = table.branches.diff("exp") preview = table.branches.cherry_pick("exp", dry_run=True) result = table.branches.cherry_pick("exp") if result["status"] == "cherryPicked": print("landed at", result["mainVersionAfter"]) elif result["status"] == "failed": print(result["diff"]["errors"]) ``` ### Behavior - Remote / Enterprise only. Local still NotSupported. - HTTP 409 is not an exception. It is Ok with status="failed" and diff.errors (CherryPickError). - Unknown error / status codes still parse as Unknown. - Requests are not retried. 409 is final and carries the body. - Endpoint is POST /v1/table/{id}/branches/cherry_pick/. - merge_insert and Table.merge are unchanged. ### Testing - `cargo test -p lancedb --features remote diff_branch` - `cargo test -p lancedb --features remote cherry_pick` - `pytest python/python/tests/test_remote_db.py -k cherry_pick` - node `remote.test.ts` diffs / cherry-picks path |
||
|
Wyatt Alt
|
851fa16b47 |
feat(python): materialized view bindings (#3933)
Exposes materialized views to Python in both the async and sync clients: create_materialized_view / open_materialized_view / list_materialized_views on the connections, and MaterializedView / AsyncMaterializedView handles carrying the parsed definition and refresh(full=, source_version=), which returns the typed refresh result. select accepts column names, (alias, expression) pairs, or a dict of the same; the definition reads back off the stored schema, so a reopened handle needs no side channel. Remote connections raise NotImplementedError up front rather than failing deep in a request, matching the computed-column convention. <sub>Stack created with <a href="https://github.com/github/gh-stack">GitHub Stacks CLI</a> • <a href="https://gh.io/stacks-feedback">Give Feedback 💬</a></sub> |
||
|
lancedb-gatefixer[bot]
|
9e8f1c1a6d |
fix(python): expose FTS build memory limits (#3796)
## Summary - expose `memory_limit` and `num_workers` on the Python FTS configuration for local builds - forward both build-only settings to the Lance inverted-index builder - add an end-to-end regression proving the configured memory budget reaches the native build ## Root cause LanceDB 0.26.1 pinned Lance 1.0.1. That Lance version used an FTS partition-merge path whose retained data made memory grow with merge progress on very large indexes. Upstream Lance [#5754](https://github.com/lance-format/lance/pull/5754) changed partition merging to stream its inputs, reducing peak memory by about 25%. Lance [#6174](https://github.com/lance-format/lance/pull/6174) then removed the old merge phase, compressed posting lists during construction, reduced indexing memory by about 60%, and introduced a total build `memory_limit` for bounded workers. Current `main` pins Lance 11.0.0-beta.3, which contains those architectural fixes. This PR does not duplicate or claim the upstream leak fix; it addresses the remaining Python API gap. ## This repair LanceDB Python did not expose the native FTS builder resource controls. `memory_limit` now sets the total local-build budget in MiB, divided among effective workers, and `num_workers` controls build parallelism. Both are build-only settings and do not affect remote builds or persisted index configuration. ## Validation - `cargo check --quiet --features remote --tests --examples` - `cargo fmt --all` - `uv run --project python --extra tests --extra dev ruff check .` - `uv run --project python --extra tests --extra dev ruff format --check python/python/lancedb/index.py python/python/tests/test_fts.py` - `uv run --project python --extra tests pytest python/tests/test_fts.py -q` (51 passed) Fixes #2923 <!-- lance-gatekeeper-fix:v1 agent=a1ceedf74531e0212cb6f1ebf9390a26 generation=1 --> --------- Co-authored-by: Gatefixer <313497061+lancedb-gatefixer[bot]@users.noreply.github.com> |
||
|
Jack Ye
|
f39a7a4dd9 |
feat: support remote tables in the data loader (#3981)
`StreamingDataset`, `PermutationBuilder`, and `Permutation` now work
against a `RemoteTable` (LanceDB Cloud and Enterprise), which unblocks
benchmarking the loader against the enterprise cluster cache.
```python
db = lancedb.connect("db://my-db", api_key=..., host_override=...)
ds = StreamingDataset(db.open_table("training"), world_size=8, rank=r)
```
Rows are addressed by `_rowid` exactly as before —
`PermutationReader::load_batch` already built the same `_rowid IN (...)`
filter that `Table::take_row_ids` sends, so the loader's fetch was
always the take path. It just was never allowed to run.
### The guard
`PermutationBuilder.__init__` rejected anything without `_inner`, so a
`RemoteTable` raised `TypeError` before reaching the PyO3 layer — which
already unwraps one via `_table._inner`.
### A bounded schema lookup
`PermutationReader::output_schema` reads the schema off a query plan,
and building a plan on a remote table *executes* the query
(`create_plan` → `execute_query`). With no limit that is `k =
isize::MAX`, so asking a remote table for its output schema pulled the
whole table over HTTP and threw it away — once per assigned split, on
every epoch, since `StreamingDataset.__iter__` constructs a
`Permutation` per split.
One row rather than zero, deliberately: lance gates its limit node on
`self.limit.unwrap_or(0) > 0`, so `Some(0)` means *no limit*.
### Tables with an LSM write spec are refused
A permutation references rows by row id, and rows that have not been
flushed to the base table do not have one yet. The loader could read
around them, but they would then be missing from training with nothing
said about it, so the build refuses such a table up front instead of
half supporting it.
### Fallible identity construction
`PermutationReader::identity` resolved `inner_new` with `unwrap`. That
was near total against a local dataset, but construction counts the base
table — an HTTP round trip for a remote one — so a transient network or
auth failure became a panic across the PyO3 boundary.
### Tests
End-to-end `permutation_builder` and `StreamingDataset` runs against a
mock server, the former torch-free so it runs wherever the suite does,
plus a test that a build succeeds without an LSM write spec and is
refused once one is installed.
|
||
|
Xuanwo
|
6a0df4de47 |
fix(python): return None from unit jobs (#3999)
## Problem Generic job result propagation exposed the PyO3 representation of Rust's unit value as `()` in Python. Unit jobs therefore returned an empty tuple instead of `None`, breaking the documented `Job.wait()` contract and the Python doctest workflow. ## Behavior Unit job completion now converts explicitly to Python `None`. Typed job results continue to pass through unchanged, with synchronous and asynchronous regression coverage. |
||
|
Xuanwo
|
a588208de6 |
feat: add scalar function authoring and catalog client (#3991)
## Problem The canonical Function wire values and typed remote Job contract do not yet provide a Python authoring surface or catalog client, so users cannot package a scalar callable, register it, or reopen the exact immutable Function version. ## Behavior This adds scalar-only `@udf` authoring with deterministic annotation or explicit Arrow schema validation, content-addressed Python artifacts, and an internal scalar-to-Arrow-batch adapter descriptor. Registration payloads model non-secret environment values and secret names only. Remote connections can submit `create_function_async` and receive a typed `Job<FunctionVersion>`, then reopen that exact version by name and version ID. Synchronous connections can call `create_function` to submit and wait for the immutable version in one operation. Local Function catalog operations return a stable `NotSupported` error. Shared Rust/Python golden payloads and mocked catalog responses freeze the request, typed terminal result, and exact lookup contract. ## Validation - Rust formatting, remote check, clippy, and focused LDB-1/LDB-2 tests - Python formatting, lint, and focused LDB-1/LDB-2 tests - Python API documentation build |
||
|
Xuanwo
|
685cb01d6d |
feat: add grouped function column bindings (#3994)
Function applications from the canonical remote contract cannot currently declare scalar or grouped computed-column outputs atomically. This adds the remote-only declaration contract for scalar, struct-as-one-column, and expanded named-struct outputs. It validates result mappings, fixes exact input/output Arrow schemas in the request, persists grouped sibling metadata, and keeps local Function execution unsupported. Unknown newer application or binding metadata remains readable, while schema-changing mutations fail closed instead of rewriting it. Stable Lance field IDs are deliberately not a declaration prerequisite in this slice. Inputs bind by parameter name and field path; Sophon remains responsible for exact-version validation, atomic all-NULL sibling creation, binding identity and revision allocation, and persisted output identities. |
||
|
Xuanwo
|
7adcffc2b4 |
fix(python): set LsmWriteSpec module metadata (#3995)
PyO3 exposed `LsmWriteSpec` with its default `builtins` module, causing mkdocstrings to resolve the public `lancedb.LsmWriteSpec` re-export as `builtins.LsmWriteSpec` and fail the documentation build. Declare the native extension module and pin the public re-export with a regression test. This also applies the repository's current Ruff formatter to seven previously unformatted Python scripts. |
||
|
a075aa62f8 |
fix(python): treat naive lit(datetime) as UTC wall clock (#3262) (#3775)
## Summary Fixes naive `lit(datetime)` equality filters against table timestamp columns on non-UTC hosts, and adds the integration matrix from #3262. ## Failure (before) On a machine in US Eastern (UTC−4 / EDT), with PyPI `lancedb==0.36.0`: ```python from datetime import datetime import lancedb from lancedb.expr import col, lit db = lancedb.connect("memory://") ts = datetime(2024, 7, 1, 10, 0, 0) # naive table = db.create_table("t", [{"id": 1, "ts": ts}]) rows = table.search().where(col("ts") == lit(ts)).to_list() # actual: [] (0 rows) # expected: 1 row ``` ### Root cause In `python/src/expr.rs`, `expr_lit` converted every `datetime` via Python's `.timestamp()`: - **naive** `.timestamp()` = local wall → UTC epoch (shifted by host offset) - **PyArrow naive** storage = UTC wall-clock microseconds (no local shift) So `lit(naive)` became `CAST('2024-07-01 14:00:00' AS TIMESTAMP)` on EDT while the table held `10:00:00`. ## After Naive datetimes are interpreted as UTC wall clock (`replace(tzinfo=timezone.utc).timestamp()`), matching Arrow storage. Aware datetimes still use `.timestamp()` (correct epoch). Same repro on this branch: **1 matching row**. ## Tests Added `TestExprDatetimeTimezoneIntegration` covering: | Case | Result | |------|--------| | both naive | match | | both same TZ (UTC) | match | | different TZs, same instant | match | | table TZ + naive lit | match (wall clock) | | table naive + aware lit | match | | naive lit SQL is wall clock, not local-shifted | asserts `10:00:00` in SQL | ### Verification ```bash cd python maturin develop pytest python/tests/test_expr.py -v ``` **102 passed** (full `test_expr.py`, including the 6 new cases). Closes #3262 --------- Co-authored-by: Will Jones <willjones127@gmail.com> Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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Wyatt Alt
|
c429863122 |
feat: refresh_column_async returns a job handle (#3939)
Mirrors create_index's dual surface: the blocking refresh_column keeps
returning {rows_filled, version}, and refresh_column_async returns the
same
Job handle create_index uses, running the refresh as an in-process task.
Invalid input is reported by the submitting call rather than by the job.
---
<sub>Stack created with <a
href="https://github.com/github/gh-stack">GitHub Stacks CLI</a> • <a
href="https://gh.io/stacks-feedback">Give Feedback 💬</a></sub>
|
||
|
Wyatt Alt
|
fc0d917d32 |
feat: refresh computed columns (#3938)
table.refresh_column("doubled") fills the rows of a declared column that
hold no value, in two passes per fragment: the first scans only the
unfilled
live rows to count exact gains and decide staging, the second streams
the
fragment's physical rows into a standalone column file published in one
DataReplacement -- committed under the dataset's own session -- so peak
memory is bounded by a scan batch. A row that holds a value keeps it;
deleted and already-filled rows never reach the expression, so a poison
value in them cannot fail the refresh. Refresh refuses under an LSM
write
spec, including the mem-wal catch-up flag that outlives unset and marks
retained SSTable rows.
---
<sub>Stack created with <a
href="https://github.com/github/gh-stack">GitHub Stacks CLI</a> • <a
href="https://gh.io/stacks-feedback">Give Feedback 💬</a></sub>
|
||
|
Wyatt Alt
|
def869bb78 |
feat: declare computed columns by SQL expression (#3937)
add_columns().computed("doubled", "x * 2") stores the expression in
field
metadata and commits the column empty; a later refresh fills it. Type
and
inputs are derived from the expression.
The declaration stays authoritative for its lifetime: writes that would
give
the column a value (append, update, merge, SQL insert), schema changes
that
would break the stored expression or reshape its output, metadata edits,
volatile expressions, declaration metadata arriving through any path but
the
validated declare call, and LSM write specs in either order against
latest
committed state are all refused. The LSM check also refuses on the
mem-wal
catch-up feature flag, which outlives unset and marks retained SSTable
rows.
Simultaneous declare/install interleavings conflict at commit via
lance's
mem-wal rule (lance#8539). Local tables only.
---
<sub>Stack created with <a
href="https://github.com/github/gh-stack">GitHub Stacks CLI</a> • <a
href="https://gh.io/stacks-feedback">Give Feedback 💬</a></sub>
|
||
|
Jack Ye
|
ffd35c1a8f |
feat: add asynchronous drop table API (#3936)
## Summary - add `drop_table_async` and return a job handle while preserving `drop_table` - consume remote 202 responses with cleanup job IDs and retain older-server compatibility - expose the API through Python and TypeScript connection wrappers |
||
|
Xuanwo
|
920fc0e455 |
fix(python): set native module metadata (#3913)
PyO3 defaults native extension classes to `builtins`, so mkdocstrings/Griffe could not resolve the newly documented `lancedb.Session` alias and `Deploy docs to Pages` failed on `main`. Declare the extension module for the public native types referenced by the Python API docs so Griffe resolves them through `lancedb._lancedb` and Pages can build again. Validated with the docs toolchain used by CI (`griffe==0.49.0`, `mkdocstrings==0.25.2`, and `mkdocs==1.6.1`); `PYTHONPATH=. mkdocs build` succeeds. |
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|
Dan RammerandClaude Opus 5
|
706a9c327f |
feat: infer maintained indexes when an LsmWriteSpec omits them (#3748)
## What `LsmWriteSpec::maintained_indexes` becomes `Option<Vec<String>>`: | value | meaning | |---|---| | `None` (new default) | every index the MemWAL supports, resolved when the spec is installed | | `Some([])` | maintain nothing — a scan/filter-only WAL table | | `Some([..])` | exactly these, taken verbatim | `with_maintained_indexes` keeps its signature; `with_no_maintained_indexes()` is new. Surfaced through the remote path (null on the wire), Python, and Node. ## Why Callers had to state the maintained set by hand every time, which is both tedious and easy to get wrong — the common case is "maintain what I already built." Resolution filters on `IndexConfig::is_memwal_maintainable`, delegating to lance's `is_maintainable_index_type`. This is load-bearing rather than cosmetic: lance does **not** skip an index type its memtable cannot build, it errors when the shard writer opens, so sweeping up a bitmap index would fail every memtable claim and leave the table unwritable. The inferred set excludes those, and an explicit list naming one is now rejected at spec time instead of at claim time. ## Behavior change A freshly constructed spec used to maintain **nothing**; it now maintains **everything supported**. This flipped because napi collapses `undefined` and `null` to `None`, so TypeScript cannot express "absent means nothing, null means all" — any other choice makes the bindings disagree with the wire. The error direction also favors it: an unwanted maintained index costs memory, while a silently unmaintained one degrades FTS to an unscored scan. Three existing tests encoded the old default and are updated rather than worked around. ## Caveat The resolved set is a snapshot, not a subscription. An index created after the spec is installed is not maintained until the spec is unset and set again. `get_lsm_write_spec` therefore always reports a concrete list — `None` never round-trips. ## Dependency Needs a lance release carrying `is_maintainable_index_type` (lance-format/lance#8095) before this builds against the pinned tag. Draft until then. ## Testing 38 Rust LSM tests and 10 Python tests pass against a local lance build, including new coverage that a bitmap index is excluded from inference and rejected when named, and that `[]` stays distinguishable from null on the wire. 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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|
79ba076429 |
feat(table): checkpoint_lsm, flush_lsm, compact_lsm, get_lsm_stats (#3736)
Converge a table's LSM write path into its base table, and inspect it. `checkpoint_lsm` is `flush` then `compact`, repeated until the fresh tier is empty — and the loop runs **client-side**. Putting it on the server would mean a background task, which means a single-flight intent, an intent that leaks on panic, a bounded-iteration policy, an "is it done" observable, and a story for every way a client can vanish mid-operation. None of that exists in this shape: each request does a bounded unit of work and reports what is left, so completion is *carried in the responses* rather than inferred from a shared counter that cannot distinguish "converged" from "hasn't started yet". Best-effort by construction. Nothing is frozen, so `converged` means L0 was empty as of the last pass. It is idempotent, abandonable at any point with zero consequence, and safe to run on a cadence — an already-converged table costs one round trip and zero compaction passes, because `flush` reports `generations_remaining` and the loop is never entered. ## The failure taxonomy is the load-bearing part Five distinct conditions used to arrive at a client as one 503. `Error::LsmRoute` carries a classification read from the response body's namespace error code **at the point of receipt** — before any generic helper folds the body into a string and keeps only the status. | condition | wire | client action | |---|---|---| | contention (latch held / pool saturated) | 429, code 21 | retry with backoff | | owning node draining | 503, code 19 `InvalidTableState` | **stop** | | fenced / no slot / transport | 503, code 17 | retry with backoff | | registry entry vanished | 404 | re-issue from `flush` (capped) | | table being dropped / not WAL-backed | 409 / 400 | stop | Draining is terminal because the drain gate is a one-way latch — retrying spins until the deadline to report a failure that was knowable on the first response. Transport retry is disabled on these routes for the same reason: it treats every 503 alike and would burn its budget before the classifier ever saw the body. `get_lsm_stats` returns `Option<LsmStats>`, matching `get_lsm_write_spec` — `None` only when the table has no LSM write path, since a struct of zeros would read as measurements. Python bindings mirror all four, preserving per-bucket detail rather than flattening to a table-level summary. ## Testing Six new unit tests against the mocked endpoint, plus the taxonomy round-trip: - flush into an empty L0 issues **zero** compact calls (asserts the call count — `generations_consumed: 0` is also true of a loop that ran a pointless pass) - the loop drives compact until the server reports zero remaining - **contention is not draining**: a 429 retries and converges; asserts the retry count - a draining node stops after **exactly one** request, no retries - stats round-trips fully populated; `include_generation_rows` off by default - every `(status, code)` pair classifies correctly, including unparseable 503 bodies falling back to *retryable* rather than terminal `cargo test -p lancedb --features remote --lib`: 723 passed. ## Notes for review - Depends on the sibling lance change returning `SealedGeneration` from `force_seal_active` only at the *server* level — no lance API is used here. - The branch is based on `codex/update-lance-10-0-0-beta-5`, so it carries one extra commit (`chore: update lance dependency to v10.0.0-beta.5`) that is not part of this change. 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: lancedb automation <robot@lancedb.com> Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com> |
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|
lancedb-gatefixer[bot]
|
7357d63e87 |
fix(python): guard concurrent table deletes (#3787)
<!-- lance-gatekeeper-fix:v1 agent=5c80c44c083b3b8ad0da595419d468fc generation=1 --> ## Root cause The legacy synchronous Python table called `delete` on a shared, mutable `lance.Dataset`. Concurrent table operations could hold a PyO3 borrow while delete requested an exclusive borrow, producing `RuntimeError: Already borrowed`. The current async-backed binding fixes this by cloning its thread-safe Rust table handle before awaiting, but that concurrency contract had no regression coverage. ## Fix - Document why delete must clone the Rust table handle before entering its async future. - Add a barrier-synchronized regression test that deletes distinct rows through one shared table from eight Python threads. - Verify every delete commits exactly one row, every commit gets a distinct version, and no rows remain. ## Validation - `cargo check --quiet --features remote --tests --examples` - `cargo fmt --all -- --check` - `uv run --extra tests --extra dev ruff format --check python/tests/test_table.py` - `uv run --extra tests --extra dev ruff check python/tests/test_table.py` - `uv run --extra tests --extra dev pytest python/tests/test_table.py::test_concurrent_deletes_are_thread_safe python/tests/test_table.py::test_delete python/tests/test_table.py::test_delete_expr python/tests/test_table.py::test_delete_expr_async -q` (4 passed) - Manual stress reproduction: 100 concurrent deletes on one table completed at versions 2–101 with zero rows remaining. Fixes #530 Co-authored-by: Gatefixer <313497061+lancedb-gatefixer[bot]@users.noreply.github.com> |
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Wyatt Alt
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8e24dd3828 |
feat(rust)!: make add_columns a builder (#3778)
Table::add_columns now takes no arguments and returns AddColumnsBuilder, so calls become .add_columns().transform(t).execute(). read_columns was the second positional argument but reaches only one of the five transform variants. In lance's add_columns_to_fragments only BatchUDF receives the caller's value: SqlExpressions replaces it with the columns its expressions reference, Stream and Reader pass None, and AllNulls reads nothing. So it was mandatory on every call -- all eighteen call sites here passed None -- and silently discarded four times out of five. As a builder method it is optional, and setting it where lance would discard it is now an error, which does reject a call that previously succeeded while ignoring the argument. Matches the builders add, update, and merge_insert already use. |
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3dd9c598e9 |
feat(remote): add seekable blob range reads (#3750)
## Summary - Implements Cloud `fetch_blob_files`: returns real seekable `BlobFile` handles over HTTP Range instead of `NotSupported`. - Completes the second Cloud blob read verb after #3684 (`fetch_blobs` = eager whole bytes; this = lazy / partial / sequential reads). - Same public handle API as local (`read_range`, `read_up_to`, `seek`, `tell`, `close`), so one code path works for local and Cloud. Large blobs (video, audio, PDFs) should not require downloading the whole object to inspect a header or stream a slice. After search, callers open a handle and read only what they need: ```python hits = table.search(vec).select(["id", "video"]).limit(5).to_arrow() with table.fetch_blob_files("video", hits)[0] as f: header = f.read_range(0, 256) f.seek(keyframe_offset) chunk = f.read_up_to(1 << 20) ``` ### Behavior - Handle creation probes size with `bytes=0-0` (bounded concurrency, input order preserved). - `204` → null (`None`); `416` with `bytes */0` → valid empty blob; other `416` → error. - `read_range` validates `Content-Range` and body length; OOB ranges fail with `invalid_input` before the request (aligned with Lance). - `read_up_to` reuses one open-ended Range response across sequential reads; `seek` drops it. - Servers older than 0.5.0 get a clear `NotSupported` (does not suggest `fetch_blobs`, which they also lack). ## Testing - `cargo test --features remote -p lancedb remote_blob` - `cargo test --features remote -p lancedb test_blob` - `cargo clippy --features remote --tests --examples` (no new warnings from this change) --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com> Co-authored-by: Cursor <cursoragent@cursor.com> |
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Wyatt AltandClaude Fable 5
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e3b472c212 |
feat: connection-level job operations (#3755)
Adds job operations to the connection surface, building on the Job handle from #3742: job(id), list_jobs, get_job, cancel_job, and job_history, plus a non-blocking Job.status(). Implemented on the Database trait (defaulting to NotSupported), the remote backend (/v1/jobs), and the Python and Node bindings; job_history returns Arrow batches. errors() and progress() are not included. Tested with mocked endpoints in all three languages. --------- Co-authored-by: Claude Fable 5 <noreply@anthropic.com> |