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f6c9d31f98
This PR is part cleanup, part feature, part example. It removes `IntoArrow` and `IntoArrowStream`. There was only one redundant call site between the two. Once we moved everything to `Scannable` these traits no longer serve any purpose. It adds a `Scannable` impl for a polars DataFrame. We used to have this at one point for `IntoArrow` so this is more like a regression fix than anything. It adds an example (and unit test) which ensures we can ingest from a Polars DataFrame and export to one. LazyFrame support would be a follow-up (though a pretty straightforward one) but we've never had proper LazyFrame support before.
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.