## Summary of the changes / Why this improves CrateDB


## Checklist

 - [ ] Added an entry in the latest `docs/appendices/release-notes/<x.y.0>.rst` for user facing changes
 - [ ] Updated documentation & `sql_features` table for user facing changes
 - [ ] Touched code is covered by tests
 - [ ] This does not contain breaking changes, or if it does:
    - It is released within a major release
    - It is recorded in the latest `docs/appendices/release-notes/<x.y.0>.rst`
    - It was marked as deprecated in an earlier release if possible
    - You've thought about the consequences and other components are adapted
      (E.g. AdminUI)
