Prompt
Do I need a migration strategy before switching from MySQL to PostgreSQL?
Latest observation
Yes — you should have a migration strategy before switching from MySQL to PostgreSQL.
At a minimum, plan for:
- Schema conversion: data types, indexes, constraints, enums, auto-increment behavior, etc.
- SQL differences: MySQL-specific syntax may need rewriting.
- Application changes: queries, ORM config, transaction behavior, and case sensitivity differences.
- Data migration: how you’ll export, transform, and import data safely.
- Testing/validation: verify row counts, key relationships, and application behavior.
- Rollback plan: what you’ll do if the cutover fails.
- Downtime/cutover approach: big-bang vs. phased migration, replication, or dual-write strategy.
If this is a small non-production database, you can get away with a simpler plan. But for anything production-facing, having a migration strategy is strongly recommended.
If you want, I can help you outline a practical MySQL → PostgreSQL migration plan.
Brands
Observation history
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