Files
lancedb/nodejs
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
..
2025-08-13 10:05:57 -07:00
2025-03-21 10:56:29 -07:00
2025-01-29 08:27:07 -08:00

LanceDB JavaScript SDK

A JavaScript library for LanceDB.

Installation

npm install @lancedb/lancedb

This will download the appropriate native library for your platform. We currently support:

  • Linux (x86_64 and aarch64 on glibc and musl)
  • MacOS (Intel and ARM/M1/M2)
  • Windows (x86_64 and aarch64)

Usage

Basic Example

import * as lancedb from "@lancedb/lancedb";
const db = await lancedb.connect("data/sample-lancedb");
const table = await db.createTable("my_table", [
  { id: 1, vector: [0.1, 1.0], item: "foo", price: 10.0 },
  { id: 2, vector: [3.9, 0.5], item: "bar", price: 20.0 },
]);
const results = await table.vectorSearch([0.1, 0.3]).limit(20).toArray();
console.log(results);

The quickstart contains more complete examples.

Development

See CONTRIBUTING.md for information on how to contribute to LanceDB.