Commit Graph

44 Commits

Author SHA1 Message Date
Brendan Clement
4cb9147bbf feat(nodejs): add renameTable on Connection (#3386)
Adds `Connection.renameTable` to the Node SDK. Closes #3381.
2026-05-20 09:05:48 -07:00
Heng Ge
0d30b31998 feat: support setting LSM write spec for a table (#3396)
## Summary

Split out from #3354

Adds `LsmWriteSpec` and `Table::set_lsm_write_spec` /
`unset_lsm_write_spec` to
install and clear the spec that selects Lance's MemWAL LSM-style write
path for
`merge_insert`.

`LsmWriteSpec` offers three sharding strategies, all built on Lance's
`InitializeMemWalBuilder`:

- `LsmWriteSpec::bucket(column, num_buckets)` — hash-bucket sharding by
the
  single-column unenforced primary key.
- `LsmWriteSpec::identity(column)` — identity sharding by the raw value
of a
  scalar column.
- `LsmWriteSpec::unsharded()` — a single MemWAL shard.

Each can be refined with `with_maintained_indexes(...)` (indexes the
MemWAL
keeps up to date as rows are appended) and
`with_writer_config_defaults(...)`
(default `ShardWriter` configuration recorded in the MemWAL index, so
every
writer starts from the same defaults). All variants require the table to
have
an unenforced primary key.

- `set_lsm_write_spec` installs the spec by initializing the MemWAL
index;
`unset_lsm_write_spec` removes it (dropping the MemWAL index), reverting
to
  the standard `merge_insert` path. `unset` is idempotent.
- Bindings: Python (`LsmWriteSpec.bucket` / `.identity` / `.unsharded`,
  `set_lsm_write_spec` / `unset_lsm_write_spec`) and TypeScript
  (`setLsmWriteSpec` with `specType` `"bucket"` / `"identity"` /
  `"unsharded"`). `RemoteTable` returns `NotSupported`.

The actual `merge_insert` LSM dispatch and `ShardWriter` write path are
a
follow-up — this PR only installs and clears the spec.
2026-05-18 00:11:33 -07:00
Heng Ge
6a431ff0a0 feat: support setting unenforced primary key (#3394)
## Summary

Adds `Table::set_unenforced_primary_key` — records a single column as
the
table's unenforced primary key in Lance schema field metadata.
"Unenforced"
means LanceDB does not check uniqueness on write; the key is metadata
that
`merge_insert` consumes.

- Single-column only; the column must exist and have a supported dtype
(Int32, Int64, Utf8, LargeUtf8, Binary, LargeBinary, FixedSizeBinary).
The
API accepts an iterable for binding ergonomics but requires exactly one
  column — compound keys are rejected.
- The primary key is immutable: calling this on a table that already has
an
unenforced primary key is rejected. Concurrent writers racing to set the
key
  fail at commit time rather than silently overriding it.
- `RemoteTable` returns `NotSupported`.
- Bindings: Python (`AsyncTable`, `LanceTable`, `RemoteTable`) and
TypeScript
  (`Table.setUnenforcedPrimaryKey`).

## Context

Split out from #3354 per review feedback, so the unenforced primary key
and the
`merge_insert` sharding spec land as separate reviewable PRs.

No Lance dependency bump — `main` is already on v7.0.0-beta.10, which
includes
the field-metadata round-trip fix the API relies on. Enforcing
primary-key
immutability at the Lance commit layer (so the cross-column concurrent
race is
also rejected) is a companion Lance change: lance-format/lance#6810.
2026-05-16 23:12:55 -07:00
Xin Sun
ab2c5adf5e feat(nodejs): add order_by method to Query (#3123) 2026-05-16 22:49:08 -07:00
Neha Prasad
13c6dae9a3 feat(nodejs): add Connection.renameTable with namespace support (#3365)
### Summary

- Expose Connection.renameTable in the Node.js bindings and align it
with existing namespace-aware connection APIs.

### Changes

- Add napi-rs rename_table on Connection, delegating to Rust
Connection::rename_table.
- Add renameTable(oldName, newName, namespacePath?) on abstract
Connection and implement on LocalConnection.
- Add a connection test that renames a table and checks names / open
behavior.

#### Testing

- cd nodejs && npm run build
- cd nodejs && npm test __test__/connection.test.ts

fix : #3364

---------

Co-authored-by: Will Jones <willjones127@gmail.com>
2026-05-14 15:30:31 -07:00
Tanay
df4ad9f851 feat(nodejs): add Scannable primitive for streaming ingestion (#3271)
## **Summary**

This PR adds a **Scannable primitive** to the Node.js bindings, bringing
parity with Python's `PyScannable`.

A `Scannable` wraps a schema, an optional row count hint, a rescannable
flag, and a batch producing callback. On the Rust side it implements
`lancedb::data::scannable::Scannable`. The goal is to give consumers
such as `Table.add`, `createTable`, and `mergeInsert` a way to stream
data without materializing the full dataset in JS memory.

This PR introduces only the primitive. Migrating existing consumers to
use it will come in follow up work.

---

## **Design**

### **Transport**

The transport uses the **Arrow IPC Stream format, one batch at a time**.

The JS side encodes each `RecordBatch` into a self contained IPC Stream
message containing schema, batch, and end of stream. The message is
returned as a `Buffer` through a napi `ThreadsafeFunction`. The Rust
side decodes it using `arrow_ipc::reader::StreamReader`.

Only one batch is active at a time, so JS memory stays bounded by the
batch size. The Node `Buffer` size limit of about 4 GiB therefore does
not constrain the stream as a whole.

I initially evaluated the Arrow C Data Interface, which is the approach
used in Python. I dropped that path after confirming that the
`apache-arrow` npm package does not expose a C Data Interface export in
any supported version from 15 to 18. JavaScript is not listed in Arrow's
C Data Interface implementation table, and the upstream tracking issue
remains open with no scheduled work.

Third party FFI shims would introduce additional dependency risk without
solving the core maintenance problem. Using IPC adds one encode and
decode step per batch, but the cost is predictable and typically
dominated by Lance's write path.

---

### **API**

```ts
class Scannable {
  readonly schema: Schema
  readonly numRows: number | null
  readonly rescannable: boolean

  static fromFactory(schema, factory, opts?)
  static fromTable(table, opts?)
  static fromIterable(schema, iter, opts?)
  static fromRecordBatchReader(reader, opts?)
}
```

The FFI boundary consists of a single callback:

`getNextBatch(isStart: boolean): Promise<Buffer | null>`

`isStart` is `true` on the first call of each new scan and `false` for
every call after it. The JS side uses it to drop any cached iterator and
re-invoke the factory at scan boundaries. This is what makes a
rescannable source restart at batch 0 on every `scan_as_stream` call,
even when a previous scan ended mid stream, for example a retried write
after a network error. Without this signal a retry would resume a stale
iterator and silently skip already emitted batches.

In addition, a schema only IPC buffer is transferred once during
construction.

---

## **Changes**

* `nodejs/src/scannable.rs`
Adds `NapiScannable` and the `LanceScannable` implementation. Implements
`schema()`, `num_rows()`, `rescannable()`, and `scan_as_stream()`.
Includes per batch schema validation against the declared schema, one
shot enforcement for non rescannable sources, and a scan boundary reset
signal (`isStart`) so rescannable sources restart from batch 0 on every
`scan_as_stream` call rather than resuming a stale iterator.

* `nodejs/src/lib.rs`
  Module registration.

* `nodejs/lancedb/scannable.ts`
Defines the `Scannable` class and the four constructors listed above.
Each constructor rejects option combinations it cannot honor, for
example a `rescannable: true` request on a one shot iterable or reader,
and a `numRows` that disagrees with an in memory table's row count.

* `nodejs/lancedb/index.ts`
  Exports the new primitive.

* `nodejs/__test__/scannable.test.ts`
  Test suite for the primitive.

---

## **Validation**

Before implementing the bridge, I ran an end to end harness with a JS
producer feeding a standalone Rust consumer built against the same
`arrow-ipc` version used in the bridge.

The harness covered the following scenarios:

* happy path
* empty stream
* 1,000 small batches
* 10 large batches
* mixed primitive types with nullables
* nested `List<Struct<>>`
* truncated stream error handling
* declared schema mismatch validation
* a 6 GB stress test through the pipe

All scenarios completed with bounded memory usage. The goal of this
harness was to confirm that the IPC Stream transport works correctly end
to end and that Node's `Buffer` size limit does not constrain the
overall stream.

Separately, the rescannable restart contract was verified with a focused
harness. A rescannable source is consumed partially and the scan is
dropped mid stream, then re-scanned. The re-scan replays from batch 0
rather than resuming the stale iterator. The same harness was run with
the `isStart` reset path disabled and the mid stream restart case failed
as expected, confirming the test exercises the real regression.

These harnesses are not meant to replace the full test suite, which is
described below.

---

## **Tests**

`__test__/scannable.test.ts` covers construction, metadata reflection,
per constructor defaults and overrides, construction time validation,
the native handle surface, and schema variety across empty tables,
nested types, `FixedSizeList`, and wide schemas.

Runtime scan behavior including `scan_as_stream`, one shot enforcement
on non rescannable sources, schema mismatch detection, IPC decode
failures, and rescannable restart semantics is not exercised here. There
is no in tree JS consumer of `NapiScannable` yet. This mirrors Python's
`PyScannable`, which has no dedicated test file and is covered
transitively through the consumers that accept a Scannable.

Runtime coverage will follow in the consumer migration work.

---

## **Status**

Ready for review.

Closes #3223

---
2026-05-14 15:07:41 -07:00
Brendan Clement
02de07576e feat(nodejs): add namespace management methods on Connection (#3371)
### Summary

Closes #3363 

Adds the four namespace management methods to the NodeJS `Connection`,
bringing parity with the Rust core and Python bindings:

- `listNamespaces(parent?, options?)`
- `createNamespace(namespacePath, options?)`
- `dropNamespace(namespacePath, options?)`
- `describeNamespace(namespacePath)`

### Test plan
- npm test
- Ran a smoke test script

```typescript
import { connect } from '<lancePath>'
import { tmpdir } from "os";
import { mkdtempSync } from "fs";
import { join } from "path";

const dir = mkdtempSync(join(tmpdir(), "lancedb-smoke-"));
console.log(`Using temp dir: ${dir}\n`);

const db = await connect(dir, {
  namespaceClientProperties: { manifest_enabled: "true" },
});

console.log("Creating namespaces...");
await db.createNamespace(["analytics"]);
await db.createNamespace(["analytics", "sales"], {
  properties: { owner: "brendan", purpose: "smoke-test" },
});
await db.createNamespace(["marketing"]);

const root = await db.listNamespaces();
console.log("Root namespaces:", root.namespaces);

const children = await db.listNamespaces(["analytics"]);
console.log("Children of 'analytics':", children.namespaces);

const descWithProps = await db.describeNamespace(["analytics", "sales"]);
console.log("Describe analytics/sales (with properties):", descWithProps);

const descNoProps = await db.describeNamespace(["analytics"]);
console.log("Describe analytics (no properties):", descNoProps);

console.log("Describing a non-existent namespace (expect error)...");
try {
  await db.describeNamespace(["does-not-exist"]);
  console.error("  UNEXPECTED: describe succeeded for non-existent namespace");
} catch (err) {
  console.log(`  ✓ Got expected error: ${err.message.split("\n")[0]}`);
}

await db.dropNamespace(["marketing"]);
const afterDrop = await db.listNamespaces();
console.log("Root after dropping marketing:", afterDrop.namespaces);

await db.close();
console.log("\nAll operations completed successfully.");
```

```
Using temp dir: /var/folders/bj/hn6jv9c50y301d1nx0y8xmn00000gn/T/lancedb-smoke-MUC5NI

Creating namespaces...
Root namespaces: [ 'analytics', 'marketing' ]
Children of 'analytics': [ 'sales' ]
Describe analytics/sales (with properties): { properties: { purpose: 'smoke-test', owner: 'brendan' } }
Describe analytics (no properties): {}
Describing a non-existent namespace (expect error)...
  ✓ Got expected error: lance error: Namespace error: Namespace not found: does-not-exist, rust/lance-namespace-impls/src/dir/manifest.rs:2495:14  Caused by: Namespace error: Namespace not found: does-not-exist, rust/lance-namespace-impls/src/dir/manifest.rs:2495:14    Caused by: Namespace not found: does-not-exist
Root after dropping marketing: [ 'analytics' ]

All operations completed successfully.
```

### Documentation
- regenerated docs
2026-05-13 11:49:27 -07:00
Brendan Clement
011fdd5c94 feat(nodejs): add prewarmData method on Table (#3374)
### Summary
- Closes #3362 
- Adds `prewarmData(columns?: string[])` to the Node bindings, mirroring
the Rust and Python implementations

### Testing
- [x] `npm run build` (regenerates the napi `.node` module + TS
declarations)
- [x] `npm run lint`
- [x] `npm test
- [ ] live test against remote table - just waiting for my dev stack to
get created

### Documentation
- updated docs
2026-05-12 15:29:48 -07:00
Jack Ye
e26b22bcca refactor!: consolidate namespace related naming and enterprise integration (#3205)
1. Refactored every client (Rust core, Python, Node/TypeScript) so
“namespace” usage is explicit: code now keeps namespace paths
(namespace_path) separate from namespace clients (namespace_client).
Connections propagate the client, table creation routes through it, and
managed versioning defaults are resolved from namespace metadata. Python
gained LanceNamespaceDBConnection/async counterparts, and the
namespace-focused tests were rewritten to match the clarified API
surface.
2. Synchronized the workspace with Lance 5.0.0-beta.3 (see
https://github.com/lance-format/lance/pull/6186 for the upstream
namespace refactor), updating Cargo/uv lockfiles and ensuring all
bindings align with the new namespace semantics.
3. Added a namespace-backed code path to lancedb.connect() via new
keyword arguments (namespace_client_impl, namespace_client_properties,
plus the existing pushdown-ops flag). When those kwargs are supplied,
connect() delegates to connect_namespace, so users can opt into
namespace clients without changing APIs. (The async helper will gain
parity in a later change)
2026-04-03 00:09:03 -07:00
Will Jones
9a5b0398ec chore: fix ci (#3139)
* Move away from buildjet, which is shutting down runners for GHA [^1]
* Add `Cargo.lock` to build jobs, so when we upgrade locked dependencies
we check the builds actually pass. CI started failing because
dependencies were changed in #3116 without running all build jobs.
* Add fixes for aws-lc-rs build in NodeJS.

[^1]: https://buildjet.com/for-github-actions/blog/we-are-shutting-down

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-16 06:25:40 -07:00
Pratik Dey
d1d720d08a feat(nodejs): support field/data type input in add_columns() method (#3114)
Add support for passing field/data type information into add_columns()
method, bringing parity with Python bindings. The method now accepts:

- AddColumnsSql[] - SQL expressions (existing functionality)
- Field - single Arrow field with explicit data type
- Field[] - array of Arrow fields with explicit data types
- Schema - Arrow schema with explicit data types

New columns added via Field/Schema are initialized with null values. All
field-based columns must be nullable due to null initialization.

Resolves #3107

---------

Signed-off-by: Pratik <pratikrocks.dey11@gmail.com>
Co-authored-by: Claude <noreply@anthropic.com>
2026-03-13 12:57:14 -07:00
Jack Ye
6329b57604 docs: update nodejs docs for storage options APIs (#2978)
Regenerate TypeScript docs to include the new initialStorageOptions()
and latestStorageOptions() methods added in #2966.

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
2026-02-04 16:07:58 -08:00
Vedant Madane
d3e15f3e17 fix(node): allow bigint[] for takeRowIds (#2916)
## Summary

This PR changes takeRowIds to accept bigint[] instead of 
number[], matching the type of _rowid returned by withRowId().

## Problem

When retrieving row IDs using \withRowId()\ and querying them back with
takeRowIds(), users get an error because:

1. _rowid values are returned as JavaScript bigint
2. takeRowIds() expected number[]
3. NAPI failed to convert: Error: Failed to convert napi value BigInt
into rust type i64

## Reproduction

\\\js
import lancedb from '@lancedb/lancedb';

const db = await lancedb.connect('memory://');
const table = await db.createTable('test', [{ id: 1, vector: [1.0, 2.0]
}]);

const results = await table.query().withRowId().toArray();
const rowIds = results.map(row => row._rowid);

console.log('types:', rowIds.map(id => typeof id)); // ['bigint']
await table.takeRowIds(rowIds).toArray(); // ❌ Error before fix
\\\

## Solution

- Updated TypeScript signature from takeRowIds(rowIds: number[]) to
takeRowIds(rowIds: bigint[])
- Updated Rust NAPI binding to accept Vec<BigInt> and convert using
get_u64()

Fixes #2722

---------

Co-authored-by: Will Jones <willjones127@gmail.com>
2026-02-03 10:09:51 -08:00
Prashanth Rao
76bcc78910 docs: nodejs failing CI is fixed (#2802)
Fixes the breaking CI for nodejs, related to the documentation of the
new Permutation API in typescript.

- Expanded the generated typings in `nodejs/lancedb/native.d.ts` to
include `SplitCalculatedOptions`, `splitNames` fields, and the
persist/options-based `splitCalculated` methods so the permutation
exports match the native API.
- The previous block comment block had an inconsistency.
`splitCalculated` takes an options object (`SplitCalculatedOptions`) in
our bindings, not a bare string. The previous example showed
`builder.splitCalculated("user_id % 3");`, which doesn’t match the
actual signature and would fail TS typecheck. I updated the comment to
`builder.splitCalculated({ calculation: "user_id % 3" });` so the
example is now correct.
- Updated the `splitCalculated` example in
`nodejs/lancedb/permutation.ts` to use the options object.
- Ran `npm docs` to ensure docs build correctly.

> [!NOTE]
> **Disclaimer**: I used GPT-5.1-Codex-Max to make these updates, but I
have read the code and run `npm run docs` to verify that they work and
are correct to the best of my knowledge.
2025-11-20 16:16:38 -08:00
Weston Pace
aeac9c7644 feat: add python Permutation class to mimic hugging face dataset and provide pytorch dataloader (#2725) 2025-11-06 16:15:33 -08:00
S.A.N
20bec61ecb refactor(node): async generator for RecordBatchIterator (#2744)
JS native Async Generator, more efficient asynchronous iteration, fewer
synthetic promises, and the ability to handle `catch` or `break` of
parent loop in `finally` block
2025-10-30 14:36:24 -07:00
Weston Pace
8f8e06a2da feat: add output_schema method to queries (#2717)
This is a helper utility I need for some of my data loader work. It
makes it easy to see the output schema even when a `select` has been
applied.
2025-10-14 05:13:28 -07:00
Weston Pace
5a19cf15a6 feat: a utility for creating "permutation views" (#2552)
I'm working on a lancedb version of pytorch data loading (and hopefully
addressing https://github.com/lancedb/lance/issues/3727).

However, rather than rely on pytorch for everything I'm moving some of
the things that pytorch does into rust. This gives us more control over
data loading (e.g. using shards or a hash-based split) and it allows
permutations to be persistent. In particular I hope to be able to:

* Create a persistent permutation
* This permutation can handle splits, filtering, shuffling, and sharding
* Create a rust data loader that can read a permutation (one or more
splits), or a subset of a permutation (for DDP)
* Create a python data loader that delegates to the rust data loader

Eventually create integrations for other data loading libraries,
including rust & node
2025-10-09 18:07:31 -07:00
BubbleCal
b59d1007d3 feat(index): add IVF_RQ index type (#2687)
this expose IVF_RQ (RabitQ quantization) index type to lancedb

---------

Signed-off-by: BubbleCal <bubble-cal@outlook.com>
2025-10-09 15:46:18 +08:00
Will Jones
1ac745eb18 ci: fix Python and Node CI on main (#2700)
Example failure:
https://github.com/lancedb/lancedb/actions/runs/18237024283/job/51932651993
2025-10-06 09:40:08 -07:00
Will Jones
48e5caabda ci(nodejs): lint for unused imports (#2673) 2025-09-23 18:49:42 -07:00
Jack Ye
8da74dcb37 feat: support per-request header override (#2631)
## Summary

This PR introduces a `HeaderProvider` which is called for all remote
HTTP calls to get the latest headers to inject. This is useful for
features like adding the latest auth tokens where the header provider
can auto-refresh tokens internally and each request always set the
refreshed token.

---------

Co-authored-by: Claude <noreply@anthropic.com>
2025-09-10 13:44:00 -07:00
Weston Pace
ed640a76d9 feat: add take_offsets and take_row_ids (#2584)
These operations have existed in lance for a long while and many users
need to drop down to lance for this capability. This PR adds the API and
implements it using filters (e.g. `_rowid IN (...)`) so that in doesn't
currently add any load to `BaseTable`. I'm not sure that is sustainable
as base table implementations may want to specialize how they handle
this method. However, I figure it is a good starting point.

In addition, unlike Lance, this API does not currently guarantee
anything about the order of the take results. This is necessary for the
fallback filter approach to work (SQL filters cannot guarantee result
order)
2025-08-15 06:48:24 -07:00
Will Jones
3d1f102087 feat: allow Python and Typescript users to create Sessions (#2530)
## Summary
- Exposes `Session` in Python and Typescript so users can set the
`index_cache_size_bytes` and `metadata_cache_size_bytes`
* The `Session` is attached to the `Connection`, and thus shared across
all tables in that connection.
- Adds deprecation warnings for table-level cache configuration


🤖 Generated with [Claude Code](https://claude.ai/code)

---------

Co-authored-by: Claude <noreply@anthropic.com>
2025-07-24 12:06:29 -07:00
BubbleCal
96c66fd087 feat: support multivector for JS SDK (#2527)
Signed-off-by: BubbleCal <bubble-cal@outlook.com>
2025-07-22 21:19:34 +08:00
BubbleCal
fec8d58f06 feat: support a bunch or FTS features in JS SDK (#2431)
- operator for match query
- slop for phrase query
- boolean query

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Introduced support for boolean full-text search queries with AND/OR
logic and occurrence conditions.
- Added operator options for match and multi-match queries to control
term combination logic.
- Enabled phrase queries to specify proximity (slop) for flexible phrase
matching.
- Added new enumerations (`Operator`, `Occur`) and the `BooleanQuery`
class for enhanced query expressiveness.

- **Bug Fixes**
- Improved validation and error handling for invalid operator and
occurrence inputs in full-text queries.

- **Tests**
- Expanded test coverage with new cases for boolean queries and
operator-based full-text searches.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Signed-off-by: BubbleCal <bubble-cal@outlook.com>
2025-06-12 17:04:19 +08:00
Will Jones
272e4103b2 feat: provide timeout parameter for merge_insert (#2378)
Provides the ability to set a timeout for merge insert. The default
underlying timeout is however long the first attempt takes, or if there
are multiple attempts, 30 seconds. This has two use cases:

1. Make the timeout shorter, when you want to fail if it takes too long.
2. Allow taking more time to do retries.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Added support for specifying a timeout when performing merge insert
operations in Python, Node.js, and Rust APIs.
- Introduced a new option to control the maximum allowed execution time
for merge inserts, including retry timeout handling.

- **Documentation**
- Updated and added documentation to describe the new timeout option and
its usage in APIs.

- **Tests**
- Added and updated tests to verify correct timeout behavior during
merge insert operations.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2025-05-08 13:07:05 -07:00
LuQQiu
ed594b0f76 feat: return version for all write operations (#2368)
return version info for all write operations (add, update, merge_insert
and column modification operations)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Table modification operations (add, update, delete, merge,
add/alter/drop columns) now return detailed result objects including
version numbers and operation statistics.
- Result objects provide clearer feedback such as rows affected and new
table version after each operation.

- **Documentation**
- Updated documentation to describe new result objects and their fields
for all relevant table operations.
- Added documentation for new result interfaces and updated method
return types in Node.js and Python APIs.

- **Tests**
- Enhanced test coverage to assert correctness of returned versioning
and operation metadata after table modifications.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2025-05-05 14:25:34 -07:00
Alex Pilon
f315f9665a feat: implement bindings to return merge stats (#2367)
Based on this comment:
https://github.com/lancedb/lancedb/issues/2228#issuecomment-2730463075
and https://github.com/lancedb/lance/pull/2357

Here is my attempt at implementing bindings for returning merge stats
from a `merge_insert.execute` call for lancedb.

Note: I have almost no idea what I am doing in Rust but tried to follow
existing code patterns and pay attention to compiler hints.
- The change in nodejs binding appeared to be necessary to get
compilation to work, presumably this could actual work properly by
returning some kind of NAPI JS object of the stats data?
- I am unsure of what to do with the remote/table.rs changes -
necessarily for compilation to work; I assume this is related to LanceDB
cloud, but unsure the best way to handle that at this point.

Proof of function:

```python
import pandas as pd
import lancedb


db = lancedb.connect("/tmp/test.db")

test_data = pd.DataFrame(
    {
        "title": ["Hello", "Test Document", "Example", "Data Sample", "Last One"],
        "id": [1, 2, 3, 4, 5],
        "content": [
            "World",
            "This is a test",
            "Another example",
            "More test data",
            "Final entry",
        ],
    }
)

table = db.create_table("documents", data=test_data, exist_ok=True, mode="overwrite")

update_data = pd.DataFrame(
    {
        "title": [
            "Hello, World",
            "Test Document, it's good",
            "Example",
            "Data Sample",
            "Last One",
            "New One",
        ],
        "id": [1, 2, 3, 4, 5, 6],
        "content": [
            "World",
            "This is a test",
            "Another example",
            "More test data",
            "Final entry",
            "New content",
        ],
    }
)

stats = (
    table.merge_insert(on="id")
    .when_matched_update_all()
    .when_not_matched_insert_all()
    .execute(update_data)
)

print(stats)
```

returns

```
{'num_inserted_rows': 1, 'num_updated_rows': 5, 'num_deleted_rows': 0}
```

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

## Summary by CodeRabbit

- **New Features**
- Merge-insert operations now return detailed statistics, including
counts of inserted, updated, and deleted rows.
- **Bug Fixes**
- Tests updated to validate returned merge-insert statistics for
accuracy.
- **Documentation**
- Method documentation improved to reflect new return values and clarify
merge operation results.
- Added documentation for the new `MergeStats` interface detailing
operation statistics.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: Will Jones <willjones127@gmail.com>
2025-05-01 10:00:20 -07:00
Ryan Green
af54e0ce06 feat: add table stats API (#2363)
* Add a new "table stats" API to expose basic table and fragment
statistics with local and remote table implementations

### Questions
* This is using `calculate_data_stats` to determine total bytes in the
table. This seems like a potentially expensive operation - are there any
concerns about performance for large datasets?

### Notes
* bytes_on_disk seems to be stored at the column level but there does
not seem to be a way to easily calculate total bytes per fragment. This
may need to be added in lance before we can support fragment size
(bytes) statistics.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Added a method to retrieve comprehensive table statistics, including
total rows, index counts, storage size, and detailed fragment size
metrics such as minimum, maximum, mean, and percentiles.
- Enabled fetching of table statistics from remote sources through
asynchronous requests.
- Extended table interfaces across Python, Rust, and Node.js to support
synchronous and asynchronous retrieval of table statistics.
- **Tests**
- Introduced tests to verify the accuracy of the new table statistics
feature for both populated and empty tables.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2025-04-29 15:19:08 -02:30
LuQQiu
a9311c4dc0 feat: add list/create/delete/update/checkout tag API (#2353)
add the tag related API to list existing tags, attach tag to a version,
update the tag version, delete tag, get the version of the tag, and
checkout the version that the tag bounded to.

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Introduced table version tagging, allowing users to create, update,
delete, and list human-readable tags for specific table versions.
  - Enabled checking out a table by either version number or tag name.
- Added new interfaces for tag management in both Python and Node.js
APIs, supporting synchronous and asynchronous workflows.

- **Bug Fixes**
  - None.

- **Documentation**
- Updated documentation to describe the new tagging features, including
usage examples.

- **Tests**
- Added comprehensive tests for tag creation, updating, deletion,
listing, and version checkout by tag in both Python and Node.js
environments.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2025-04-28 10:04:46 -07:00
Ryan Green
3ae90dde80 feat: add new table API to wait for async indexing (#2338)
* Add new wait_for_index() table operation that polls until indices are
created/fully indexed
* Add an optional wait timeout parameter to all create_index operations
* Python and NodeJS interfaces

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

## Summary by CodeRabbit

- **New Features**
- Added optional waiting for index creation completion with configurable
timeout.
- Introduced methods to poll and wait for indices to be fully built
across sync and async tables.
  - Extended index creation APIs to accept a wait timeout parameter.
- **Bug Fixes**
- Added a new timeout error variant for improved error reporting on
index operations.
- **Tests**
- Added tests covering successful index readiness waiting, timeout
scenarios, and missing index cases.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
2025-04-21 08:41:21 -02:30
Weston Pace
26080ee4c1 feat: add prewarm_index function (#2342)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Added the ability to prewarm (load into memory) table indexes via new
methods in Python, Node.js, and Rust APIs, potentially reducing
cold-start query latency.
- **Bug Fixes**
- Ensured prewarming an index does not interfere with subsequent search
operations.
- **Tests**
- Introduced new test cases to verify full-text search index creation,
prewarming, and search functionalities in both Python and Node.js.
- **Chores**
  - Updated dependencies for improved compatibility and performance.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: Lu Qiu <luqiujob@gmail.com>
2025-04-17 15:14:36 -07:00
BubbleCal
2248aa9508 fix: bugs for new FTS APIs (#2314)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Enhanced full-text search capabilities with support for phrase
queries, fuzzy matching, boosting, and multi-column matching.
- Search methods now accept full-text query objects directly, improving
query flexibility and precision.
- Python and JavaScript SDKs updated to handle full-text queries
seamlessly, including async search support.

- **Tests**
- Added comprehensive tests covering fuzzy search, phrase search, and
boosted queries to ensure robust full-text search functionality.

- **Documentation**
- Updated query class documentation to reflect new constructor options
and removal of deprecated methods for clarity and simplicity.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Signed-off-by: BubbleCal <bubble-cal@outlook.com>
2025-04-15 11:51:35 +08:00
Weston Pace
625bab3f21 feat: update to lance 0.25.3b1 (#2294)
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **Chores**
- Updated dependency versions for improved performance and
compatibility.

- **New Features**
- Added support for structured full-text search with expanded query
types (e.g., match, phrase, boost, multi-match) and flexible input
formats.
- Introduced a new method to check server support for structural
full-text search features.
- Enhanced the query system with new classes and interfaces for handling
various full-text queries.
- Expanded the functionality of existing methods to accept more complex
query structures, including updates to method signatures.

- **Bug Fixes**
  - Improved error handling and reporting for full-text search queries.

- **Refactor**
- Enhanced query processing with streamlined input handling and improved
error reporting, ensuring more robust and consistent search results
across platforms.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Signed-off-by: BubbleCal <bubble-cal@outlook.com>
Co-authored-by: BubbleCal <bubble-cal@outlook.com>
2025-04-01 06:36:42 -07:00
LuQQiu
a1d1833a40 feat: add analyze_plan api (#2280)
add analyze plan api to allow executing the queries and see runtime
metrics.
Which help identify the query IO overhead and help identify query
slowness
2025-03-28 14:28:52 -07:00
BubbleCal
bdb6c09c3b feat: support binary vector and IVF_FLAT in TypeScript (#2221)
resolve #2218

---------

Signed-off-by: BubbleCal <bubble-cal@outlook.com>
2025-03-21 10:57:08 -07:00
Weston Pace
1a449fa49e refactor: rename drop_db / drop_database to drop_all_tables, expose database from connection (#2098)
If we start supporting external catalogs then "drop database" may be
misleading (and not possible). We should be more clear that this is a
utility method to drop all tables. This is also a nice chance for some
consistency cleanup as it was `drop_db` in rust, `drop_database` in
python, and non-existent in typescript.

This PR also adds a public accessor to get the database trait from a
connection.

BREAKING CHANGE: the `drop_database` / `drop_db` methods are now
deprecated.
2025-02-06 13:22:28 -08:00
Will Jones
e05c0cd87e ci(node): check docs in CI (#2084)
* Make `npm run docs` fail if there are any warnings. This will catch
items missing from the API reference.
* Add a check in our CI to make sure `npm run dos` runs without warnings
and doesn't generate any new files (indicating it might be out-of-date.
* Hide constructors that aren't user facing.
* Remove unused enum `WriteMode`.

Closes #2068
2025-01-30 16:06:06 -08:00
Will Jones
f059372137 feat: add drop_index() method (#2039)
Closes #1665
2025-01-20 10:08:51 -08:00
Will Jones
db125013fc docs: better formatting for Node API docs (#1892)
* Sets `"useCodeBlocks": true`
* Adds a post-processing script `nodejs/typedoc_post_process.js` that
puts the parameter description on the same line as the parameter name,
like it is in our Python docs. This makes the text hierarchy clearer in
those sections and also makes the sections shorter.
2024-12-09 17:04:09 -08:00
BubbleCal
bf7d2d6fb0 docs: update FTS docs for JS SDK (#1634)
Signed-off-by: BubbleCal <bubble-cal@outlook.com>
2024-09-13 05:48:29 -07:00
Cory Grinstead
69295548cc docs: minor updates for js migration guides (#1451)
Co-authored-by: Will Jones <willjones127@gmail.com>
2024-07-22 10:26:49 -07:00
Weston Pace
e21b56293c docs: add a reference to @lancedb/lance in the docs (#1166)
We aren't yet ready to switch over the examples since almost all JS
examples rely on embeddings and we haven't yet ported those over.
However, this makes it possible for those that are interested to start
using `@lancedb/lancedb`
2024-04-05 16:34:39 -07:00