L2 Deep Dive
Databases pgvector Basics: Embeddings Inside PostgreSQL
How pgvector adds vector storage and similarity search to PostgreSQL, what the three distance operators do, and the index you must create before you hit 100K rows.
L2 Deep Dive
Databases Vectorless RAG Patterns for Database Knowledge Systems
How tree-based retrieval can improve DB runbooks, schema docs, and incident knowledge over chunked vector search.