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sql: support outbound FKs on TTL tables #101225

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ecwall opened this issue Apr 11, 2023 · 2 comments · Fixed by #101236
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sql: support outbound FKs on TTL tables #101225

ecwall opened this issue Apr 11, 2023 · 2 comments · Fixed by #101236
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@ecwall
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A-row-level-ttl C-enhancement Solution expected to add code/behavior + preserve backward-compat (pg compat issues are exception) T-sql-foundations SQL Foundations Team (formerly SQL Schema + SQL Sessions)

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@ecwall
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ecwall commented Apr 11, 2023 •
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Outbound foreign keys are unaffected by rows being deleted from the TTL table itself and should be easier to support than inbound foreign keys.

Jira issue: CRDB-26871

Epic CRDB-26101
@ecwall ecwall added C-enhancement Solution expected to add code/behavior + preserve backward-compat (pg compat issues are exception) T-sql-foundations SQL Foundations Team (formerly SQL Schema + SQL Sessions) A-row-level-ttl labels Apr 11, 2023
@ecwall ecwall self-assigned this Apr 11, 2023
This was referenced Apr 11, 2023
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craig bot pushed a commit that referenced this issue Apr 12, 2023
@ecwall
Merge #101236
bf24682 
101236: ttl: allow outbound foreign keys on TTL tables r=otan,rafiss a=ecwall

Fixes #101225

This change allows TTL tables to have outbound foreign keys. Outbound foreign
keys are unaffected by rows being deleted from the TTL table itself.

Release note (sql change): Allow outbound foreign keys on TTL tables.

Co-authored-by: Evan Wall <[email protected]>
@craig craig bot closed this as completed in 85dc0dd Apr 12, 2023
This was referenced Apr 19, 2023
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@ecwall In which version will thsi be supported?

I am getting error:

[0A000] ERROR: relation "refresh_token" (6696): unimplemented: foreign keys from table with TTL "refresh_token" are not permitted Hint: You have attempted to use a feature that is not yet implemented. See: https://go.crdb.dev/issue-v/76407/v22.2

With a FK on refresh_token like this:

FOREIGN KEY (user_region, user_id) REFERENCES "user" (region, id) ON DELETE CASCADE ON UPDATE CASCADE

If I understood #76407 correctly, would it work if we removed the ON DELETE CASCADE?

@ecwall
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ecwall commented Jun 21, 2023 •
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@simplenotezy

@ecwall In which version will thsi be supported?

Outbound foreign keys are supported in v22.2.9 and v23.1.2.

If I understood #76407 correctly, would it work if we removed the ON DELETE CASCADE?

It isn't related to whether you use ON DELETE CASCADE or not with the outbound foreign key. The complexity around ON DELETE CASCADE only applies to inbound foreign keys, but all foreign keys were initially unsupported for simplicity.

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ttl: allow outbound foreign keys on TTL tables
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