2d8b2cb9ed
The IVF probe count was the one vector search parameter with no setting, and it is what bounds recall on a large indexed corpus: partitions grow with the corpus, so a fixed probe count covers less of it, and vector_refine_factor can only re-score what the probes returned. Defaults to 20, matching lance, so search is unchanged. Also corrects the create-index docs, which predate the measurement: optimize() covers new chunks, so a rebuild is about retraining centroids rather than reaching unindexed rows. |
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