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Add DiskANN index for vec0 virtual table

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Add DiskANN graph-based index: builds a Vamana graph with configurable R
(max degree) and L (search list size, separate for insert/query), supports
int8 quantization with rescore, lazy reverse-edge replacement, pre-quantized
query optimization, and insert buffer reuse. Includes shadow table management,
delete support, KNN integration, compile flag (SQLITE_VEC_ENABLE_DISKANN),
release-demo workflow, fuzz targets, and tests. Fixes rescore int8
quantization bug.
This commit is contained in:
Alex Garcia 2026-03-29 19:46:53 -07:00
parent e2c38f387c
commit 575371d751
23 changed files with 6550 additions and 135 deletions
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Makefile
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@ -204,7 +204,7 @@ test-loadable-watch:
watchexec --exts c,py,Makefile --clear -- make test-loadable
test-unit:
$(CC) -DSQLITE_CORE -DSQLITE_VEC_TEST -DSQLITE_VEC_ENABLE_RESCORE tests/test-unit.c sqlite-vec.c vendor/sqlite3.c -I./ -Ivendor -o $(prefix)/test-unit && $(prefix)/test-unit
$(CC) -DSQLITE_CORE -DSQLITE_VEC_TEST -DSQLITE_VEC_ENABLE_RESCORE -DSQLITE_VEC_ENABLE_DISKANN=1 tests/test-unit.c sqlite-vec.c vendor/sqlite3.c -I./ -Ivendor $(CFLAGS) -o $(prefix)/test-unit && $(prefix)/test-unit
# Standalone sqlite3 CLI with vec0 compiled in. Useful for benchmarking,
# profiling (has debug symbols), and scripting without .load_extension.