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## Summary - PR #2957 changed the permutation builder to only select `_rowid` from the base table, but `Splitter::project()` for hash and calculated splits replaced the selection entirely, dropping `_rowid`. - Include `_rowid` in the column selections for hash and calculated split projections. - Fix a Python test that queried the permutation table for base table columns no longer materialized. Fixes the `test_split_hash`, `test_split_hash_with_discard`, `test_split_calculated`, `test_shuffle_combined_with_splits`, and `test_filter_with_splits` failures in `test_permutation.py`. ## Test plan - [x] `cargo test -p lancedb -- permutation` (22 passed) - [x] `pytest python/tests/test_permutation.py` (46 passed) - [x] `npm test __test__/permutation.test.ts` (20 passed) 🤖 Generated with [Claude Code](https://claude.com/claude-code) --------- Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
LanceDB
A Python library for LanceDB.
Installation
pip install lancedb
Preview Releases
Stable releases are created about every 2 weeks. For the latest features and bug fixes, you can install the preview release. These releases receive the same level of testing as stable releases, but are not guaranteed to be available for more than 6 months after they are released. Once your application is stable, we recommend switching to stable releases.
pip install --pre --extra-index-url https://pypi.fury.io/lancedb/ lancedb
Usage
Basic Example
import lancedb
db = lancedb.connect('<PATH_TO_LANCEDB_DATASET>')
table = db.open_table('my_table')
results = table.search([0.1, 0.3]).limit(20).to_list()
print(results)
Development
See CONTRIBUTING.md for information on how to contribute to LanceDB.