Hybrid Search in Postgres with pgvector: Field Notes on HNSW, tsvector, and Why Pure Vector Search Missed Exact Matches
This story is from 2026-09-06. It is preserved in the archive; the latest stories are on the live feed.
Headline: pgvector is a Postgres extension that adds vector column types and approximate-nearest-neighbour indexes, and used alone it is a mediocre search engine. Every retrieval bug I shipped in a RAG feature was fixed by fusing pgvector similarity with Postgres full-text search through Reciprocal…
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- 2026-09-06 15:27 · DEV Community — AI
Hybrid Search in Postgres with pgvector: Field Notes on HNSW, tsvector, and Why Pure Vector Search Missed Exact Matches
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