Glossary
Vector Database
A database designed to store and search embeddings efficiently. Regular databases search by exact matches or keywords. Vector databases search by meaning and similarity.
If you're building a RAG system or any AI-powered search, you'll need a vector database. Pinecone, Weaviate, and pgvector (Postgres extension) are common options. Don't over-invest here early; simpler solutions often work fine at moderate scale.