Hybrid Search in PostgreSQL: What It Costs to Own the Fusion
Azure AI Search and Cosmos DB fuse keyword and vector results for you; pgvector doesn't. What owning RRF in PostgreSQL involves, and when it pays.
13 articles
Azure AI Search and Cosmos DB fuse keyword and vector results for you; pgvector doesn't. What owning RRF in PostgreSQL involves, and when it pays.
Hybrid search is default RAG advice, but the BM25 leg has real costs; a three-way test on Azure AI Search shows which questions it rescues.
Diagnose why a RAG system fails before adding patterns: hybrid search, semantic reranking, grounding gates and citations on Azure AI Search, mapped to failures.
Pure vector search excels at semantic similarity but can miss exact keyword matches. Pure keyword search finds exact terms but misses conceptually similar…
Hybrid search significantly improves retrieval quality for RAG applications by leveraging both semantic understanding and exact keyword matching.
Vector search excels at semantic similarity but can miss exact matches. Keyword search finds precise terms but misses synonyms and context. Together, they…
Keyword search excels at exact matches and rare terms. Vector search captures semantic similarity. Combining them leverages both strengths while mitigating…
Azure AI Search combines the best of vector, keyword, and semantic search in one service.
Hybrid search continues to outperform pure vector or keyword approaches. Invest in tuning your fusion strategy for your specific domain.
How to build hybrid search inside PostgreSQL with pgvector, full-text search and weighted reciprocal rank fusion, and when a dedicated search service is better.
Which hybrid search knobs Azure AI Search exposes on the 2023-11-01 API, why I avoid client-side score weighting, and how to measure changes before shipping.
Hybrid retrieval improves RAG quality by combining the strengths of different search approaches. Tomorrow, I will cover Azure Dev Box and development…
Hybrid search patterns enable building search systems that handle diverse query types effectively.