Files
lancedb/nodejs
Wyatt Alt d96151c385 feat: cascade option on materialized view refresh
A view over a view could only be brought fully up to date by refreshing
each view in the lineage by hand, in order. `cascade` on the refresh
builder, Python `refresh`/`refresh_async` and Node `refresh` does that in
one call: every upstream view is refreshed furthest first, each reading
the version the one before it left, then the named view. `full` applies
to the named view only.

Locally the lineage is walked through each view's source, and each hop is
refreshed against the incarnation read in that walk. Remote tables send
`cascade` in the refresh request, only when set, so older servers that
reject unknown fields are unaffected by plain refreshes.
2026-09-24 19:09:12 +00:00
..
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.