Implementation pages for widely deployed PostgreSQL extensions that add geospatial data, vector search and audit logging to a self-hosted database.
Adding PostGIS for geospatial data: installing and versioning the extension alongside PostgreSQL, spatial indexing, GPL licensing considerations, and keeping PostGIS in step during major PostgreSQL upgrades.
Running vector similarity search inside PostgreSQL with pgvector: choosing HNSW or IVFFlat indexes, distance functions, memory and build-time trade-offs, and when a dedicated vector database is the better fit.
Configuring pgAudit session and object audit logging: which statement classes to log, matching the extension version to the PostgreSQL major, shipping logs to a SIEM and controlling log volume.
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