feat(python): add type-safe expression builder API (#3150)

mirror of https://github.com/lancedb/lancedb.git synced 2026-10-01 01:15:45 +00:00

Introduces col(), lit(), func(), and Expr class as alternatives to raw
SQL strings in .where() and .select(). Expressions are backed by
DataFusion's Expr AST and serialized to SQL for remote table compat.

Resolves: 
- https://github.com/lancedb/lancedb/issues/3044 (python api's)
- https://github.com/lancedb/lancedb/issues/3043 (support for filter)
- https://github.com/lancedb/lancedb/issues/3045 (support for
projection)

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

This commit is contained in:

Pratik Dey

2026-03-31 11:32:49 -07:00

committed by

GitHub

co-authored by

Claude Sonnet 4.6

parent c7f189f27b

commit 7b1c063848

13 changed files with 1059 additions and 41 deletions

python/.gitignore

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 # Test data created by some example tests
 data/
 _lancedb.pyd
 # macOS debug symbols bundle generated during build
 *.dSYM/