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d1d720d08a
Add support for passing field/data type information into add_columns() method, bringing parity with Python bindings. The method now accepts: - AddColumnsSql[] - SQL expressions (existing functionality) - Field - single Arrow field with explicit data type - Field[] - array of Arrow fields with explicit data types - Schema - Arrow schema with explicit data types New columns added via Field/Schema are initialized with null values. All field-based columns must be nullable due to null initialization. Resolves #3107 --------- Signed-off-by: Pratik <pratikrocks.dey11@gmail.com> Co-authored-by: Claude <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.