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09b1bbc12a
BREAKING CHANGE: direct Rust users lose the `IndexStatistics::loss` field. Python and Node.js consumers are unaffected in practice for remote tables (the value was always `None`/absent), but the attribute is gone for local tables too. `IndexStatistics::loss` was local-only — LanceDB Cloud never returned it, so `RemoteTable::index_stats` always set `loss: None`. It's vestigial; this removes it. - Remove `loss` from `IndexStatistics` and the internal `IndexMetadata` in `rust/lancedb/src/index.rs`, plus the summing logic in `NativeTable::index_stats`. - Drop `loss` from the Python and Node.js bindings (and their tests/docs). Fixes #3493 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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.