Files
lancedb/nodejs
Neha Prasad 1befebf614 fix(node): handle null values in nullable boolean fields (#2657)
### Solution
Added special handling in `makeVector` function for boolean arrays where
all values are null. The fix creates a proper null bitmap using
`makeData` and `arrowMakeVector` instead of relying on Apache Arrow's
`vectorFromArray` which doesn't handle this edge case correctly.

fixes: #2644

### Changes
- Added null value detection for boolean types in `makeVector` function
- Creates proper Arrow data structure with null bitmap when all boolean
values are null
- Preserves existing behavior for non-null boolean values and other data
types

- Fixes the boolean null value bug while maintaining backward
compatibility.

---------

Co-authored-by: Will Jones <willjones127@gmail.com>
2025-09-23 14:07:00 -07:00
..
2025-08-13 10:05:57 -07:00
2025-09-21 21:28:40 -07:00
2025-03-21 10:56:29 -07:00
2025-01-29 08:27:07 -08:00
2025-07-23 12:20:36 -07:00
2025-03-21 10:56:29 -07:00

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 a more complete example.

Development

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