planner: The length function could not be substitute when collation of mapped column is utfxxx_bin (#54179)

[ti-chi-bot]

This is an automated cherry-pick of #54179

What problem does this PR solve?

The constant propagated should consider the collation of mapped column.
For example,

set collation = utf8_bin || set collation= utf8mb4_bin
where name='a' and length(name) = 1

The name = 'a' doesn't mean the all of column name data is 'a'. The 'a ' also can match the name='a' condition.
The reason is that 'utf8_bin' and 'utf8mb4_bin' are 'PAD SPACE' collation which means that it will ignore the trailing spaces.
**This kind of constant couldn't be propagated to 'Length' function. **

So I changed the columnSubstitute function to special due with 'length' function case.

Issue Number: close #53730

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 the error unexpected eliminated 'length()' conditions when collation is utf8_bin or utf8mb4_bin

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: qw4990, Rustin170506

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-11-07 09:00:42.537145063 +0000 UTC m=+1117955.376300610: ☑️ agreed by Rustin170506.
• 2024-11-07 09:28:54.947502391 +0000 UTC m=+1119647.786657935: ☑️ agreed by qw4990.

[codecov]

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Additional details and impacted files

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