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9e2a68541e
**Problem**: When a vector field is marked as nullable, users should be able to omit it or pass `undefined`, but this was throwing an error: "Table has embeddings: 'vector', but no embedding function was provided" fixes: #2646 **Solution**: Modified `validateSchemaEmbeddings` to check `field.nullable` before treating `undefined` values as missing embedding fields. **Changes**: - Fixed validation logic in `nodejs/lancedb/arrow.ts` - Enabled previously skipped test for nullable fields - Added reproduction test case **Behavior**: - ✅ `{ vector: undefined }` now works for nullable fields - ✅ `{}` (omitted field) now works for nullable fields - ✅ `{ vector: null }` still works (unchanged) - ✅ Non-nullable fields still properly throw errors (unchanged) --------- Co-authored-by: Will Jones <willjones127@gmail.com> Co-authored-by: neha <neha@posthog.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 a more complete example.
Development
See CONTRIBUTING.md for information on how to contribute to LanceDB.