expression: fix tikv crash when bool like cast(bit as char) (#57484)

[ti-chi-bot]

This is an automated cherry-pick of #57484

What problem does this PR solve?

Issue Number: close #56494

What changed and how does it work?

When casting the bit type to a non binary string, this PR first convert bits to binary string first. This can ensure HandleBinaryLiteral can be used in the following code and convert binary to the specified collation with right behavior.

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.

fix tikv crash when `bool like cast(bit as char)`

[ti-chi-bot]

@lcwangchao This PR has conflicts, I have hold it.
Please resolve them or ask others to resolve them, then comment /unhold to remove the hold label.

[lcwangchao]

/unhold

[lcwangchao]

/retest

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (release-6.5@18f58f0). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-6.5     #59324   +/-   ##
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  Hits                   ?     260311           
  Misses                 ?      76367           
  Partials               ?      16719           

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Defined2014, lcwangchao

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-02-07 11:36:40.568691767 +0000 UTC m=+10842.964913826: ☑️ agreed by lcwangchao.
• 2025-02-08 04:58:10.806635282 +0000 UTC m=+73333.202857343: ☑️ agreed by Defined2014.