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Stored computed columns support FKs, with limits #18792

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Merged
merged 3 commits into from
Aug 8, 2024
Merged

Stored computed columns support FKs, with limits #18792

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Stored computed columns support FKs, with limits
rmloveland Aug 6, 2024
09652fb
Update with reviewer feedback
rmloveland Aug 8, 2024
283cb6a
Merge branch 'main' into 20240806-DOC-10491-foreign-keys-on-computed-…
rmloveland Aug 8, 2024
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3 changes: 3 additions & 0 deletions src/current/v24.2/computed-columns.md
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Expand Up @@ -30,6 +30,9 @@ Computed columns:
- Cannot be used to generate other computed columns.
- Behave like any other column, with the exception that they cannot be written to directly.
- Are mutually exclusive with [`DEFAULT`]({% link {{ page.version.version }}/default-value.md %}) and [`ON UPDATE`]({% link {{ page.version.version }}/create-table.md %}#on-update-expressions) expressions.
- {% include_cached new-in.html version="v24.2" %} Can be used in [`FOREIGN KEY`]({% link {{ page.version.version }}/foreign-key.md %}) constraints, but are restricted to the following subset of supported options. This restriction is necessary because we cannot allow the computed column value to change.
- `ON UPDATE (NO ACTION|RESTRICT)`
- `ON DELETE (NO ACTION|RESTRICT|CASCADE)`

Virtual computed columns:

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