timescale/pgai

Provides declarative SQL-based vectorizer pipelines that automatically generate and synchronize embeddings as PostgreSQL data changes, decoupling embedding failures from core database operations. Includes a Semantic Catalog feature for natural language-to-SQL translation in agentic applications, and supports multiple embedding providers through stateless worker architecture. Integrates with pgvector/pgvectorscale for semantic search and works across PostgreSQL variants including Timescale Cloud, RDS, and Supabase.

5,767 stars.