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CockroachDB — the cloud native, distributed SQL database designed for high availability, effortless scale, and control over data placement.
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release-24.2: sql/schemachanger: handle empty schemas gracefully #135927

Open blathers-crl[bot] opened 5 hours ago

blathers-crl[bot] commented 5 hours ago

Backport 1/1 commits from #135910 on behalf of @fqazi.

/cc @cockroachdb/release


Previously, when running CREATE SCHEMA in the declartive schema changer empty schema names with end up with an assertion failure error. This was because the declarative schema change code did not handle these cases properly. When an empty schema is specified ideally a syntax error should be generated. To address this, this patch will generate the correct errors and adds logic tests.

Fixes: #129676

Release note (bug fix): CREATE SCHEMA now returns the correct error if a the schema name is missing.


Release justification: low risk fix for a bug that produces incorrect errors

blathers-crl[bot] commented 5 hours ago

Thanks for opening a backport.

Please check the backport criteria before merging:

If your backport adds new functionality, please ensure that the following additional criteria are satisfied: - [ ] There is a high priority need for the functionality that cannot wait until the next release and is difficult to address in another way. - [ ] The new functionality is additive-only and only runs for clusters which have specifically “opted in” to it (e.g. by a cluster setting). - [ ] New code is protected by a conditional check that is trivial to verify and ensures that it only runs for opt-in clusters. State changes must be further protected such that nodes running old binaries will not be negatively impacted by the new state (with a mixed version test added). - [ ] The PM and TL on the team that owns the changed code have signed off that the change obeys the above rules. - [ ] Your backport must be accompanied by a post to the appropriate Slack channel (#db-backports-point-releases or #db-backports-XX-X-release) for awareness and discussion.

Also, please add a brief release justification to the body of your PR to justify this backport.

cockroach-teamcity commented 5 hours ago

This change is Reviewable