Docs: Update docs on db upgrade and downgrade - #22604
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Copilot review overview
🔵 Needs a closer look
Manual commands use inconsistent path bases, and downgrade compatibility semantics remain ambiguous.
Review effort: Balanced
Findings: None
What changed in this PR
Updates database schema migration guidance, especially downgrade behavior and empty relations.
Changes:
- Clarifies compatibility, relation handling, and schema hashes.
- Expands manual upgrade/downgrade instructions.
- Fixes a duplicated word.
| File | Description |
|---|---|
docs/prepare-db-upgrade-downgrade.md |
Expands migration documentation and manual setup steps. |
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nickrolfe
approved these changes
Sep 17, 2026
nickrolfe
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Looks sensible.
The part about empty relations is correct: the evaluator's loader for extensional relations returns an empty relation if the .rel file doesn't exist.
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My main aims are:
.propertiesfile for an empty relation.(I wrote this using Copilot, but I've checked it all myself.)