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[python] Add regression coverage for sparse IVF-PQ searches - #10726
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Use the existing Vindex batch API for single queries and singleton batches so filters containing live NULL vectors can return fewer hits than requested. Keep Python execution independent of the Native backend and preserve the existing score conversion and invalid-ID filtering. Add real SDK and deletion-vector regressions for sparse and empty results. Signed-off-by: QuakeWang <wangfuzheng0814@foxmail.com>
Sync merged CI baseline fixes and the current Native search API. Keep the IVF-PQ fix and its regression coverage within the original scope. Signed-off-by: QuakeWang <wangfuzheng0814@foxmail.com>
Sync upstream CI baseline and Rust API alignment fixes. Preserve the IVF-PQ reader change and existing regression scope. Signed-off-by: QuakeWang <wangfuzheng0814@foxmail.com>
Keep the reader and Native test identical to upstream after apache#10782. Retain real-SDK sparse-filter and Python deletion-vector regression coverage. Signed-off-by: QuakeWang <wangfuzheng0814@foxmail.com>
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Purpose
The scalar FFI rejected IVF-PQ results shorter than K when filters included live NULL vectors. #10782 already contains the reader fix; this PR adds real-SDK regression coverage.
Cover sparse, NULL-only and empty filters across three metrics and single/batch queries, plus Python table searches with deletion vectors. The final diff contains tests only and does not require the Rust SDK.
Tests