feat: add ChangeColumnType for AlterKind

[KKould]

I hereby agree to the terms of the GreptimeDB CLA.

Refer to a related PR or issue link (optional)

#3517

What's changed and what's your intention?

add ChangeColumnType to AlterKind and validate ChangeColumnType, process the meta after ChangeColumnType

Tips: The AlterKind::ChangeColumnType part of mapping greptime-proto will be committed later (after the update of greptime-proto)

Checklist

• I have written the necessary rustdoc comments.
• I have added the necessary unit tests and integration tests.
• This PR does not require documentation updates.

[codecov]

Codecov Report

Attention: Patch coverage is 78.87789% with 64 lines in your changes are missing coverage. Please review.

Project coverage is 85.25%. Comparing base (4437225) to head (1e3fa5b).
Report is 12 commits behind head on main.

❗ Current head 1e3fa5b differs from pull request most recent head d871718. Consider uploading reports for the commit d871718 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3757      +/-   ##
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- Coverage   85.51%   85.25%   -0.27%     
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  Files         946      946              
  Lines      159555   160194     +639     
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+ Hits       136447   136572     +125     
- Misses      23108    23622     +514     

[evenyag]

I'll review this today if possible.

[killme2008]

If the purpose of ModifyColumn is solely to alter the column type, then ChangeType would be a more apt name. @evenyag What do you think?

[KKould]

If the purpose of ModifyColumn is solely to alter the column type, then ChangeType would be a more apt name. @evenyag What do you think?

I plan to implement renaming column name after this pr
issue: #996

[killme2008]

If the purpose of ModifyColumn is solely to alter the column type, then ChangeType would be a more apt name. @evenyag What do you think?

I plan to implement renaming column name after this pr issue: #996

I prefer that each AlterKind only performs a single function, in line with the Single Responsibility Principle (SRP: https://en.wikipedia.org/wiki/Single-responsibility_principle). Therefore, I personally recommend using a different AlterKind for renaming columns.

[KKould]

If the purpose of ModifyColumn is solely to alter the column type, then ChangeType would be a more apt name. @evenyag What do you think?

I plan to implement renaming column name after this pr issue: #996

I prefer that each AlterKind only performs a single function, in line with the Single Responsibility Principle (SRP: https://en.wikipedia.org/wiki/Single-responsibility_principle). Therefore, I personally recommend using a different AlterKind for renaming columns.

agree, then I will make changes later

[killme2008]

LGTM. Great work! Don't forget to change the PR title too.