Adityaj0 e6ae93f52a fix: hybrid search minimum_nprobes(0) silently no-ops instead of raising (#3770) ...

## Summary

`LanceHybridQueryBuilder._create_query_builders()` checked
`self._minimum_nprobes` for truthiness instead of `is not None` — the
very next line correctly checks `is not None` for
`self._maximum_nprobes`. Since `0` is falsy in Python,
`.minimum_nprobes(0)` on a hybrid query silently dropped the value
instead of forwarding it to the vector sub-query, where it would raise
the same `ValueError` a plain vector query raises for the same input
(`minimum_nprobes must be greater than 0`, validated in
`rust/lancedb/src/query.rs` and covered for the plain-query path by
`test_invalid_nprobes_sync`).

Fixes #3766

## Change

One-line fix: `if self._minimum_nprobes:` → `if self._minimum_nprobes is
not None:`, matching the existing `maximum_nprobes` check right below
it.

## Test plan

- [x] New regression test
`test_hybrid_query_minimum_nprobes_zero_raises` in
`python/python/tests/test_hybrid_query.py`
- [x] `uv run --extra tests pytest python/tests/test_hybrid_query.py
-vv` — 13 passed
- [x] `uv run --extra dev ruff format` / `ruff check` — clean

Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>

2026-08-03 12:54:41 -07:00

..

lancedb

fix: hybrid search minimum_nprobes(0) silently no-ops instead of raising (#3770)

2026-08-03 12:54:41 -07:00

tests

fix: hybrid search minimum_nprobes(0) silently no-ops instead of raising (#3770)

2026-08-03 12:54:41 -07:00