PostgreSQL's native full-text search works for small datasets but struggles with performance and search quality at scale. ElasticSearch provides superior search capabilities but introduces operational complexity with dual data stores and sync challenges. pg_search offers a middle ground by embedding a modern search engine (powered by Tantivy) directly into PostgreSQL, delivering BM25 ranking, fuzzy matching, and real-time indexing without the operational overhead of managing separate systems.
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The problems with Postgres full-text searchChoosing ElasticSearch for full-text searchpg_search: The best of both worldsWhen to choose pg_search over ElasticSearchSort: