expression: Disallow conv fuction with hybrid type argement to be pushed down to TiKV (#53502)

[ti-chi-bot]

This is an automated cherry-pick of #53502

What problem does this PR solve?

Issue Number: close #51877

Problem Summary:

What changed and how does it work?

As described in #51877, such case can't be supported in TiKV side, just disallow it to be pushed down.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No need to test

  • I checked and no code files have been changed.

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (release-6.5@116a7f9). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-6.5     #59293   +/-   ##
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  Coverage               ?   73.6410%           
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  Files                  ?       1097           
  Lines                  ?     353227           
  Branches               ?          0           
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  Hits                   ?     260120           
  Misses                 ?      76378           
  Partials               ?      16729           

[yibin87]

LGTM

[ti-chi-bot]

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LGTM

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lcwangchao, XuHuaiyu, yibin87

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• OWNERS [XuHuaiyu,lcwangchao]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-02-07 04:11:10.294089429 +0000 UTC m=+417741.826501427: ☑️ agreed by lcwangchao.
• 2025-02-07 07:15:28.05495899 +0000 UTC m=+428799.587370983: ☑️ agreed by XuHuaiyu.