Disable defer_foreign_keys during sqlite migration #407
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jayvdb
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Nov 2, 2025
butane_core/src/db/sqlite.rs
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| let stmts: [&str; 4] = [ | ||
| // Wrap in PRAGMA defer_foreign_keys to allow dropping tables that are referenced | ||
| let stmts: [&str; 6] = [ | ||
| "PRAGMA defer_foreign_keys = ON;", |
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not sure I like this, but it does solve one of our rollback problems.
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Electron100
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Nov 5, 2025
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jayvdb
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Nov 8, 2025
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| //future improvement: support column renames | ||
| /// Disable constraint enforcement before migration operations. | ||
| /// Used when operations require temporarily disabling foreign key checks or other constraints. | ||
| DisableConstraints, |
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Again, I'm still not sure about this.
Perhaps rename to Preamble and Postamble/Epilogue , to be a bit more generic.
To be truely useful for allowing workarounds for complex situations, I feel that these new Ops should have arguments of old and new ADB, so that the backend has the full context and can then provide complex logic. But that feels like cheating.
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Fixes one of #226