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

• [x] Unit test
• [x] 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

[elsa0520]

/test unit-test

[tiprow[bot]]

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/test unit-test

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[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

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Additional details and impacted files

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##             release-7.5     #54352   +/-   ##
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Flag	Coverage Δ
unit	72.0397% <100.0000%> (?)

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Components	Coverage Δ
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parser	∅ <0.0000%> (?)
br	53.4363% <0.0000%> (?)

[ti-chi-bot[bot]]

[LGTM Timeline notifier]

Timeline:

• 2024-07-03 07:48:12.407967436 +0000 UTC m=+1397018.893456266: :ballot_box_with_check: agreed by qw4990.
• 2024-07-03 07:50:54.809363329 +0000 UTC m=+1397181.294852161: :ballot_box_with_check: agreed by AilinKid.

[ti-chi-bot[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: AilinKid, qw4990, XuHuaiyu

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• ~~OWNERS~~ [AilinKid,XuHuaiyu,qw4990]
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[qw4990]

/retest