#pgvector

2 posts

June 21, 2026 · 20 min read

Practical RAG with Marten and pgvector, Part 1: Semantic Search over Movie Plots

Build semantic search and a small RAG pipeline over 42,000 movie plots using nothing but Postgres. Marten's new pgvector package stores and searches the embeddings, Ollama generates them locally, and there is not an API key in sight.

martendb postgresql pgvector rag

June 21, 2026 · 14 min read

Practical RAG with Marten and pgvector, Part 2: A Q&A Assistant for the Marten Docs

Turn the same Marten + pgvector + Ollama stack from Part 1 into a question-answering assistant over the Marten documentation. The new ingredient is chunking: splitting long markdown pages into retrievable passages, then citing the exact page each answer draws from.

martendb postgresql pgvector rag