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Deep dive into search concepts, and learn how to build powerful search features in Postgres.
Full-Text Search in PostgreSQL
Learn how to implement powerful text search directly in PostgreSQL using built-in full-text search capabilities.
Implementing BM25 in PostgreSQL
Learn how to implement BM25 ranking in PostgreSQL using various approaches from SQL to ParadeDB extensions.
What is Full-Text Search?
Learn about full-text search capabilities, how they work, and when to use them in your applications.
What is Hybrid Search?
Learn about hybrid search systems that combine lexical and semantic search for comprehensive results.
What is Reciprocal Rank Fusion?
Learn about Reciprocal Rank Fusion (RRF), a technique for combining multiple search result rankings.
What is Vector Search?
Learn about vector search, how it enables semantic similarity matching using high-dimensional embeddings.
What is BM25?
Learn about BM25, the ranking algorithm that powers modern search engines.