[WIP] Assess need for data re-import after PR 19024

[Copilot]

Thanks for asking me to work on this. I will get started on it and keep this PR's description up to date as I form a plan and make progress.

Original prompt

#19024 这个pr后，之前我表里的数据是否需要重新导入下

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This change is 

[github-actions]

Pull request description must contain CLA like the following:

I hereby agree to the terms of the CLA available at: https://docs.databend.com/dev/policies/cla/

## Summary

Summary about this PR

- Close #issue

[github-actions]

This pull request's title is not fulfill the requirements. @Copilot please update it 🙏.

Valid format:

fix(query): fix group by string bug
  ^         ^---------------------^
  |         |
  |         +-> Summary in present tense.
  |
  +-------> Type: rfc, feat, fix, refactor, ci, docs, chore

Valid types:

• rfc: this PR proposes a new RFC
• feat: this PR introduces a new feature to the codebase
• fix: this PR patches a bug in codebase
• refactor: this PR changes the code base without new features or bugfix
• ci: this PR changes build/testing/ci steps
• docs: this PR changes the documents or websites
• chore: this PR only has small changes that no need to record

[github-actions]

At least one test kind must be checked in the PR description.
@Copilot please update it 🙏.

[github-actions]

At least one type of change must be checked in the PR description.
@Copilot please update it 🙏.