Rag Retrieval

Postgres extension adding vector types plus exact and approximate nearest neighbor search with HNSW and IVFFlat indexes. Supports single, half, binary, and sparse vectors with L2, inner product, cosine, L1, Hamming, and Jaccard distances for embeddings and RAG retrieval.

RAG | C · vector-search · embeddings

Vespa is a distributed platform for indexing and searching text, vectors, tensors, and structured data, with machine-learning inference at serving time. Use it to build large-scale search, recommendation, personalization, and RAG systems.

RAG | Java · AI search · vector search