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PostgreSQL includes built-in full-text search capabilities through its tsvector and tsquery data types. While convenient for simple use cases, PostgreSQL’s search falls short compared to dedicated search engines for user-facing applications.

Quick comparison

MeilisearchPostgreSQL FTS
Primary purposeSearch engineRelational database
Typo toleranceBuilt-inRequires pg_trgm extension
Faceted searchNative supportComplex to implement
Language supportCJK, Arabic, Hebrew + LatinLimited (no native CJK; third-party extensions exist)
Search-as-you-typeOptimized for under 50msNot designed for this
Relevancy tuningConfigurable ranking rulesBasic ts_rank
Frontend librariesInstantSearch compatibleNone

What PostgreSQL FTS does well

Single-system simplicity

Keeping search in your existing PostgreSQL database means no additional infrastructure to manage. For simple use cases, this reduces operational complexity.

Transactional consistency

Search results are always consistent with your primary data, with no synchronization lag between database and search index.

SQL integration

You can combine full-text search with regular SQL queries, joins, and aggregations in a single statement.

When to choose Meilisearch instead

You need typo tolerance

PostgreSQL’s default full-text search cannot handle misspellings. The pg_trgm extension helps but doesn’t provide true fuzzy matching with word proximity awareness. Meilisearch handles typos automatically with configurable tolerance per attribute. Implementing faceted search in PostgreSQL is complex and resource-intensive, especially with multiple facet types and counts. Meilisearch provides optimized, first-class APIs for facet filtering and counting.

You need instant search-as-you-type

PostgreSQL isn’t optimized for the sub-50ms response times needed for search-as-you-type experiences. Full-text search queries on large datasets become costly, especially when ranking results.

Your users speak non-Latin languages

PostgreSQL lacks dictionaries for Chinese, Japanese, Korean, and other languages requiring complex tokenization. Meilisearch provides optimized support for these languages with automatic detection.

You want frontend integration

Search engines like Meilisearch work with InstantSearch libraries, providing pre-built UI components for search bars, facet filters, pagination, and more. PostgreSQL has no equivalent ecosystem.

You need a public-facing search API

Meilisearch provides a secure REST API designed for public consumption with API key management and tenant tokens for multi-tenancy. Exposing PostgreSQL directly to clients creates security risks and requires building a custom API layer.

Scaling is a concern

Full-text search queries on large PostgreSQL datasets compete for resources with your primary application workload. A dedicated search engine scales independently and uses data structures optimized for search operations.

You want better relevancy

PostgreSQL’s ts_rank only supports attribute weighting. Meilisearch offers configurable ranking rules for typo count, word proximity, exact matches, and custom business logic.

When PostgreSQL FTS might be enough

Consider PostgreSQL full-text search if:
  • You have a small dataset (thousands of documents)
  • Search isn’t user-facing or real-time search isn’t required
  • Basic keyword matching is sufficient
  • You can’t add additional infrastructure
  • You’re using a managed PostgreSQL service that restricts extensions

Migration resources

Ready to upgrade from PostgreSQL full-text search:
PostgreSQL is a registered trademark of the PostgreSQL Global Development Group. This comparison is based on publicly available information and our own analysis.