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## Summary Fixes issue #2465 where FTS explain plans only showed basic `LanceScan` instead of detailed execution plans with FTS query details, limits, and offsets. ## Root Cause The `FTSQuery::explain_plan()` and `analyze_plan()` methods were missing the `.full_text_search()` call before calling explain/analyze plan, causing them to operate on the base query without FTS context. ## Changes - **Fixed** `explain_plan()` and `analyze_plan()` in `src/query.rs` to call `.full_text_search()` - **Added comprehensive test coverage** for FTS explain plans with limits, offsets, and filters - **Updated existing tests** to expect correct behavior instead of buggy behavior ## Before/After **Before (broken):** ``` LanceScan: uri=..., projection=[...], row_id=false, row_addr=false, ordered=true ``` **After (fixed):** ``` ProjectionExec: expr=[id@2 as id, text@3 as text, _score@1 as _score] Take: columns="_rowid, _score, (id), (text)" CoalesceBatchesExec: target_batch_size=1024 GlobalLimitExec: skip=2, fetch=4 MatchQuery: query=test ``` ## Test Plan - [x] All new FTS explain plan tests pass - [x] Existing tests continue to pass - [x] FTS queries now show proper execution plans with MatchQuery, limits, filters Closes #2465 🤖 Generated with [Claude Code](https://claude.ai/code) <!-- This is an auto-generated comment: release notes by coderabbit.ai --> ## Summary by CodeRabbit * **Tests** * Added new test cases to verify explain plan output for full-text search, vector queries with pagination, and queries with filters. * **Bug Fixes** * Improved the accuracy of explain plan and analysis output for full-text search queries, ensuring the correct query details are reflected. * **Refactor** * Enhanced the formatting and hierarchical structure of execution plans for hybrid queries, providing clearer and more detailed plan representations. <!-- end of auto-generated comment: release notes by coderabbit.ai --> --------- Co-authored-by: Claude <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.