PostgreSQL for advanced features, MySQL for simplicity.
PostgreSQL¶
- JSONB, arrays, hstore
- CTE, window functions
- PostGIS
- Better concurrent writes
MySQL¶
- Simpler setup
- Faster simple reads
- Shared hosting support
- WordPress/LAMP
Performance¶
- Simple SELECT: MySQL slightly faster
- Complex queries: PostgreSQL better
- Concurrent writes: PostgreSQL
Detailed Comparison¶
PostgreSQL offers advanced data types such as JSONB with GIN indexes, arrays, hstore, and range types that MySQL lacks. Window functions and CTE (Common Table Expressions) are fully supported in PostgreSQL and significantly simplify complex analytical queries. The PostGIS extension makes PostgreSQL the best open-source solution for geospatial data.
MySQL has simpler replication and is historically optimized for read-heavy workloads. Its ecosystem includes tools like MySQL Workbench and broad support from hosting services. For new projects, we recommend PostgreSQL due to better SQL compliance, more robust MVCC, and more active development. MySQL remains a good choice for WordPress, Drupal, and other PHP applications where native support is essential.
PostgreSQL for New Projects¶
MySQL for WordPress/LAMP.