Amazon Bedrock Knowledge Bases now supports hybrid search for Aurora PostgreSQL and MongoDB Atlas vector stores

Amazon Bedrock Knowledge Bases has expanded its hybrid search capabilities to include Aurora PostgreSQL and MongoDB Atlas vector stores, enhancing retrieval augmented generation (RAG) applications.

• Hybrid search merges semantic and full-text search methods
• Improves search result relevance by combining conceptual and keyword-based queries
• Can be enabled through Knowledge Base APIs or Bedrock console
• Aurora PostgreSQL hybrid search available in most AWS Regions
• MongoDB Atlas hybrid search limited to US West (Oregon) and US East (N. Virginia) Regions

This feature allows more precise and contextually relevant search results by expanding the search scope across different query methods.