PostGIS After pg_upgrade: Fixing Version Mismatches and Broken Functions

📰 Dev.to · Philip McClarence

Learn to fix PostGIS version mismatches and broken functions after a PostgreSQL major version upgrade using pg_upgrade

intermediate Published 14 Mar 2026
Action Steps
  1. Run pg_upgrade to upgrade your PostgreSQL database
  2. Check for PostGIS version mismatches using the POSTGIS_VERSION function
  3. Reinstall PostGIS to match the new PostgreSQL version
  4. Test and verify that PostGIS functions are working correctly
  5. Apply any necessary patches or updates to ensure compatibility
Who Needs to Know This

Database administrators and developers who work with PostgreSQL and PostGIS will benefit from this lesson, as it helps resolve common issues that arise after a major version upgrade

Key Insight

💡 PostGIS version mismatches can occur after a PostgreSQL major version upgrade, but can be resolved by reinstalling PostGIS and testing its functions

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Key Takeaways

Learn to fix PostGIS version mismatches and broken functions after a PostgreSQL major version upgrade using pg_upgrade

Full Article

PostgreSQL major version upgrades via pg_upgrade are well-documented, well-tested, and generally...
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