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20 lines
760 B
Markdown
20 lines
760 B
Markdown
# PostgreSQL Docker Upgrade: Major Version Migration
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This guide explains how to safely upgrade a PostgreSQL Docker container from one major version to another (e.g., version 12 to 16) using a **dump and restore** method. This is the recommended approach in Docker environments.
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---
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## ⚠️ Important
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PostgreSQL data directories are **not compatible across major versions**. You cannot just point a newer version to the old data volume. You must export and re-import your data.
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## Backup
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First do a backup
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## Restore
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Setup new Version and apply restore_postgres_databases.py.
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## 🔗 References
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- [PostgreSQL Backup Documentation](https://www.postgresql.org/docs/current/backup-dump.html)
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- [PostgreSQL Docker Image](https://hub.docker.com/_/postgres)
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