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Avanish Garg
bc4c32b779
`optimize()` fails once a tagged version is older than the cleanup cutoff, although the docs say tagged versions are exempt from cleanup, and the failed prune also skips the index-optimize step (repro and numbers in the issue). Change: `OptimizeAction::Prune` already exposes `error_if_tagged_old_versions: Option<bool>`, so no new API. `cleanup_old_versions` and `cleanup_old_versions_before` in `rust/lancedb/src/table/optimize.rs` now use `unwrap_or(false)`, which covers `OptimizeAction::Prune`, `OptimizeAction::All` and `optimize_prune_before`. The Python and Node bindings pass `None`, which now means "retain tagged versions"; I left `python/src/table.rs` and `nodejs/src/table.rs` untouched (this also avoids a conflict with #3870, which edits that region). `Some(true)` still opts in to the error. Doc comments updated; the sentence in `docs/web/management/table.mdx` is accurate once this lands. Tests: Rust `test_optimize_prune_retains_tagged_versions` (`Some(true)` still errors; the default retains the tag; `optimize_prune_before`; `checkout_tag` plus a data read), a Python sync test with a scalar index (index step runs, a second optimize works, untagged versions are pruned, `checkout("release-1")` works), a Python async test and a Node test. **What I could and could not verify (please read):** - I could NOT compile Rust here (not enough disk), so `cargo check`, `cargo test`, the Python/Node binding builds and therefore the fixed-path assertions of the new Rust, Python and Node tests have not been run. This is why the PR is a draft; I will mark it ready once CI is green and fix whatever it finds. - Ran: both new Python tests fail on the released 0.40.0 wheel with the exact error above (so they do catch the bug); pylance 13.0.0 confirms the semantics (`cleanup_old_versions(error_if_tagged_old_versions=False)` removes the untagged versions and keeps the tagged one, still readable with `lance.dataset(version="keep")`); in Lance v14.0.0-beta.7 `cleanup.rs` the policy field is `bool`, the builder default is `true`, and Lance's own `auto_cleanup_hook` uses `Some(false)`; `rustfmt --edition 2024 --check` passes on `optimize.rs`. - The Rust and Node tests rely on timestamp ordering (`nextMillisecond()`, `days(0)`/`now()`), so they could be flaky: tell me if you prefer another approach. Behaviour change: anyone who relied on the error to learn that a tag blocks cleanup now gets a silent retain. Not changed: the deprecated sync `LanceTable.cleanup_old_versions` calls pylance directly and still errors on tagged versions (the keyword may not exist in the oldest supported pylance); `freshness.rs:1377` and `refresh.rs:1077` still pass `None` (I did not check what those paths do with tagged versions). Fixes #4543
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.