Add IVF index for vec0 virtual table

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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superseded ivf-benchmarks/ directory.

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This commit is contained in:

Alex Garcia 2026-03-29 19:46:23 -07:00

parent 43982c144b

commit 3358e127f6

22 changed files with 5237 additions and 28 deletions

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