refactor: refactor drop table executor

[WenyXu]

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Refer to a related PR or issue link (optional)

#3516

What's changed and what's your intention?

1. Refactor drop table executor
2. Support to drop metric table (Drop Database statement)

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 37.73585% with 33 lines in your changes are missing coverage. Please review.

Project coverage is 84.79%. Comparing base (d832795) to head (7fc40b7).
Report is 3 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3589      +/-   ##
==========================================
- Coverage   85.16%   84.79%   -0.37%     
==========================================
  Files         927      930       +3     
  Lines      153797   154237     +440     
==========================================
- Hits       130987   130792     -195     
- Misses      22810    23445     +635