pgvector
Andrew Kane (pgvector project) · Vector databases
PostgreSQL extension adding vector types, distance operators and HNSW/IVFFlat indexes for similarity search inside the database
PostgreSQLOpen sourceFreeSelf-hostedNov 2, 2026
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PostGIS
PostGIS Project Steering Committee (OSGeo) · GIS & mapping
Spatial extension for PostgreSQL adding geometry, geography and raster types with indexing and hundreds of SQL functions
GPL-2.0-or-laterOpen sourceFreeSelf-hostedNov 2, 2026
TimescaleDB
Tiger Data (formerly Timescale) · Relational databases
PostgreSQL extension for time-series data adding hypertables, compression and continuous aggregates, from the company now named Tiger Data
Apache-2.0 AND LicenseRef-Timescale-LicenseOpen sourceFreeSelf-hostedNov 2, 2026
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