posts tagged with postgres.

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• Lime: an LALR(1) parser generator with runtime grammar extensions

  Yacc and Bison generate parsers at compile time. Database engines, language servers, and extensible query processors need parsers that can evolve at runtime. Lime fills that gap.
  posted on 2026-05-26
  tagged with #lime, #parsers, #compilers, #postgres

• pg_mentat: bringing Mozilla's Mentat back inside PostgreSQL

  Datomic's data model is too good to leave in a deprecated repo. The pgrx port lives in the database that already has the rest of your data.
  posted on 2026-05-26
  tagged with #postgres, #pg_mentat, #datalog, #datomic, #extensions

• pg_tre: approximate regex as a real Postgres index AM

  A native USING tre index access method with three-tier filtering, WAL coverage, and Levenshtein-distance recheck. Sub-millisecond on tens of thousands of rows.
  posted on 2026-05-26
  tagged with #postgres, #pg_tre, #indexing, #regex, #extensions

• pg_turbovec: 4-bit vector search that beats pgvector on storage and latency

  Open-source vector similarity for Postgres backed by Google Research's TurboQuant, with measured numbers against pgvector HNSW.
  posted on 2026-05-26
  tagged with #postgres, #pg_turbovec, #vector-search, #quantization, #extensions