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Jack Ye
5f00e7ddee
A view is a named query a database stores and plans on every read. It
holds no rows, which is the whole difference from a materialized view.
Adds `create_view`, `describe_view`, `drop_view` and `list_views` on
`Connection` and the `Database` trait, the remote client that speaks
`/v1/view/{id}/*` and `/v1/namespace/{id}/view/list`, and the Python and
Node bindings. Local databases return `NotSupported`; the server side
lives in Sophon.
`ViewDescription` carries the defining query, the database unqualified
names in it resolve against, and the schema the query resolved to.
`create_view` returns one, so a caller has the schema without a second
call. There is no replace: changing a view is a drop and a create.
Querying a view stays SQL's job -- there are no rows behind it, so there
is no `open_view` returning a `Table`.
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.