Comments (1)
steder
commented on May 24, 2024
The other part of this either detecting that a migration has already been run. After a rollback you'll want to move forward again and part of that is going to involve determining if a migration needs to be run again.
A couple thoughts that may make this easier:
- record hash of each migration that is run: should be able to determine if the script changed since it was originally run
- separate migrations that affect ddl from those that manipulate data: the idea is that if ddl has already been updated you don't need to run it. But a data migration may need to migrate any new data that was added during the rollback.
- mark migration scripts as idempotent / safe to rerun.
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Related Issues (16)
- Use Distribute / Packaging instead of Setuptools HOT 2
- Fail faster on bad migration ranges
- Naming HOT 3
- Why it gots to be yaml? HOT 2
- There are no examples of altering a table
- SQL Output for Deployment
- Structuring Migrations (Removing Monolithic Migrations)
- Templates for Migrations
- Nicer UX: Commandline examples are kind of verbose / repetitive
- Python Migrations
- Someday
- Add tox support
- Documentation
- Migration failure needs to be obvious and clean HOT 4
- Cram Tests
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