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01c6b9dcb8
Add support for enabling MemWAL (Memory Write-Ahead Log) mode on merge insert operations. This allows streaming writes to route through memory nodes for high-performance buffered writes. Changes: - Add `mem_wal` field to MergeInsertBuilder with validation - Add `x-lancedb-mem-wal-enabled` header for remote requests - Add Python `mem_wal()` method to LanceMergeInsertBuilder - Add validation to ensure only upsert pattern is supported: - when_matched_update_all() without filter - when_not_matched_insert_all() - Throw NotSupported error for native tables - Add mem_wal_enabled to ClientConfig for Python/Node bindings Generated with [Claude Code](https://claude.ai/code) via [Happy](https://happy.engineering) Co-Authored-By: Claude <noreply@anthropic.com> Co-Authored-By: Happy <yesreply@happy.engineering>
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.