2 commits

Author	SHA1	Message	Date
Alex Garcia	9df59b4c03	Temporarily block vector UPDATE for DiskANN and IVF indexes ... vec0Update_UpdateVectorColumn writes to flat chunk blobs but does not update DiskANN graph or IVF index structures, silently corrupting KNN results. Now returns a clear error for these index types. Rescore UPDATE is unaffected — it already has a full implementation that updates both quantized chunks and float vectors. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>	2026-03-31 14:08:08 -07:00
Alex Garcia	3358e127f6	Add IVF index for vec0 virtual table ... Add inverted file (IVF) index type: partitions vectors into clusters via k-means, quantizes to int8, and scans only the nearest nprobe partitions at query time. Includes shadow table management, insert/delete, KNN integration, compile flag (SQLITE_VEC_ENABLE_IVF), fuzz targets, and tests. Removes superseded ivf-benchmarks/ directory.	2026-03-31 01:18:47 -07:00