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pg_vectorsearch
Tiger Data's PostgreSQL extension that adds PRISM, a partition-based vector index with RaBitQ quantization; alpha, Postgres 18 and up.
0 members list pg_vectorsearch, unchanged over the last 12 weeks, data as of 17 October 2026
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- pg_vectorsearch vs pgvector: PRISM vs HNSW build times, filters and which index takes the vector slot in Postgres
Stay on pgvector HNSW in production: pg_vectorsearch 0.1.0 is alpha and needs Postgres 18. With enough build memory, 42 h vs 49 min becomes 6.2 h vs 0.96 h.