PostgreSQL + TypeORM Production Patterns
Stop debugging N+1 queries and broken migrations. Learn the schema architecture decisions that experienced teams use to ship fast and reliably, with real-world patterns you can copy directly into your project.
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What's Inside
- Section 1: Entity Design Patterns for Common Data Models
- Section 2: Relationship Optimization (Eager/Lazy Loading, Query Builders)
- Section 3: Safe Migration Strategies Without Downtime
- Section 4: Indexing for TypeORM Queries
- Section 5: Three Complete Production Schemas (Downloadable)
- Bonus: Decision Framework Reference Card
The Zero-Downtime Migration Checklist Before you write any migration, you need a pre-deployment decision tree. Large migrations take multiple code releases. Step 1: Add the column/index on a replica first. Test locally. Do not deploy immediately. Step 2: For breaking changes (renaming columns, changing types), you need three separate deployments:
- Deploy code that ignores the old column but writes to the new one
- Migrate data from old to new
- Deploy code that reads from new column, removes references to old
- Finally, drop the old column in the next release This sounds bureaucratic. It's not. It's the difference between confident deployments and incident management at 3 AM.
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