planner: fix the issue that the type of BatchGet with multiple columns is incorrect

[YangKeao]

What problem does this PR solve?

Issue Number: close #60523

Problem Summary:

Some branches of BatchGet don't convert the type of parameters, and make it fail to select correct rows. Some branches are good. Ref #32534

What changed and how does it work?

1. Remove unused pairs.
2. Set the values to be the result of getPointGetValue.

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

[tiprow]

@YangKeao: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
fast_test_tiprow	32d0357	link	true	/test fast_test_tiprow
tidb_parser_test	32d0357	link	true	/test tidb_parser_test

Full PR test history. Your PR dashboard.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 73.5585%. Comparing base (0316b78) to head (32d0357).
Report is 14 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #60524        +/-   ##
================================================
+ Coverage   73.1090%   73.5585%   +0.4494%     
================================================
  Files          1714       1714                
  Lines        474584     477405      +2821     
================================================
+ Hits         346964     351172      +4208     
+ Misses       106277     104891      -1386     
+ Partials      21343      21342         -1     

Flag	Coverage Δ
integration	42.6485% <100.0000%> (?)
unit	72.3230% <100.0000%> (-0.0042%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	52.6553% <ø> (ø)
parser	∅ <ø> (∅)
br	47.0379% <ø> (-0.1950%)	⬇️

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Defined2014, qw4990

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Needs approval from an approver in each of these files:

• OWNERS [Defined2014,qw4990]
• pkg/planner/OWNERS [qw4990]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-04-14 06:07:53.098269811 +0000 UTC m=+2668566.782505906: ☑️ agreed by Defined2014.
• 2025-04-14 07:08:39.083464499 +0000 UTC m=+2672212.767700595: ☑️ agreed by qw4990.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.1: #60525.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #60526.
But this PR has conflicts, please resolve them!

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.1: #60527.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.5: #60528.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.1: #60529.
But this PR has conflicts, please resolve them!

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.5: #60530.
But this PR has conflicts, please resolve them!