Prompt LibraryEngineering
Database Schema Migration Planner Prompt
Plan a zero-downtime migration from old to new schema.
The prompt
Plan a zero-downtime migration from the current schema to the target schema.
Provide the SQL for each step, in order, with:
- Backfill strategy.
- A deploy-safe order (add column → backfill → dual-write → switch → drop old).
- Rollback SQL for each step.
- When it is safe to run each step (off-peak, locked table, etc.).
Current schema:
{{current}}
Target schema:
{{target}}Replace the {{fields}} with your own context and tighten the rules to match your domain.
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