Job callers currently lose the server's structured progress when describing, listing, or waiting for a job. Expose Rust and Python progress snapshots and optional wait observers using the existing backend poller. Python supports callbacks, a caller-owned tqdm-like bar, or `progress=True`; `status()` still returns a string and the default wait behavior is unchanged. Preserve unknown progress fields and phases from newer servers, and report omitted counters as unknown. Each wait calibrates a caller-owned bar from its first complete snapshot, then uses a high-water mark within the same execution epoch; a new epoch or smaller plan resets the bar. ETA is best-effort and omitted for missing, stale, paused, or incompatible samples. Newly submitted index and refresh handles forward observers through their freshness wrapper while retaining successful-wait read consistency. The Jobs guide includes draft Python/Rust snapshot and observer examples for release; TypeScript progress support remains tracked under ENT-3500. Validation on the development EC2 host: the initial 11 Python progress tests, REST fixture caller, and two Rust progress regressions passed. After fixing freshness-wrapper forwarding, rebuilt the Python extension and ran two submitted-handle Python tests plus the new Rust refresh and index regressions (one test each); all passed. Strict Clippy, rustfmt, and targeted Ruff passed. The final commit only wraps the new guide section in an MDX draft and clarifies language support. Repository-wide Ruff reports 48 existing findings in six unchanged docs/web-tests files. This publishes the SDK portion of ENT-3500. Server-side live-split and terminal-progress changes and the combined server/SDK end-to-end scenario remain in progress. Refs ENT-3500. BREAKING CHANGE: Rust struct literals for `JobInfo` must add `progress: None`, `phase: None`, and `paused: false`. Literals for `JobDescription` must add `progress: None`, `phase: None`, `queue_reason: None`, `waiting_for_job_id: None`, and `paused_at_millis: None` when that metadata is unavailable. Existing Python calls remain compatible.
LanceDB Documentation
For website guides in docs/web, start with
Documentation in CONTRIBUTING.md. That
covers editing pages, generated examples, previews, availability and drafts.
This page covers the SDK reference in docs/src, built with MkDocs. Its
GitHub Actions workflow builds and deploys on
pushes to main, so it can include unreleased APIs. That is separate from the
release editions of the Mintlify website.
Building the docs
Setup
- Install LanceDB Python. See setup in Python contributing guide.
Run
make developto install the Python package. - Install documentation dependencies. From LanceDB repo root:
pip install -r docs/requirements.txt
Preview the docs
Run these commands from the LanceDB repository root. The subshell changes into
docs to load mkdocs.yml, while leaving your shell in the repository root.
(cd docs && PYTHONPATH=. mkdocs serve)
If you want to just generate the HTML files:
(cd docs && PYTHONPATH=. mkdocs build)
If successful, you should see a docs/site directory in the repository root that
you can verify locally.
Adding examples
To make sure examples are correct, we put examples in test files so they can be run as part of our test suites.
You can see the tests are at:
- Python:
python/python/tests/docs - Typescript:
nodejs/examples/
Checking python examples
cd python
pytest -vv python/tests/docs
Checking typescript examples
The examples depend on @lancedb/lancedb at file:../dist, so the package must be
built before running the tests. This uses pnpm; see the
Typescript contributing guide for the toolchain setup.
pushd nodejs
pnpm install
pnpm build
popd
Then you can run the examples by going to the nodejs/examples directory, which is a
separate pnpm package with its own lockfile:
pushd nodejs/examples
pnpm install
pnpm test
popd
API documentation
Python
The Python API documentation is organized based on the file docs/src/python/python.md.
We manually add entries there so we can control the organization of the reference page.
However, this means any new types must be manually added to the file. No additional
steps are needed to generate the API documentation.
Typescript
The typescript API documentation is generated from the typescript source code using typedoc.
When new APIs are added, you must manually re-run the typedoc command to update the API documentation. The new files should be checked into the repository.
pushd nodejs
# `pnpm docs` would invoke pnpm's built-in `docs` command, not the script.
pnpm run docs
popd