executor: Fix the panic in approx_percentile function (#49644)

[ti-chi-bot]

This is an automated cherry-pick of #49644

What problem does this PR solve?

Issue Number: close #40463

Problem Summary:

What changed and how does it work?

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

[ti-chi-bot]

This cherry pick PR is for a release branch and has not yet been approved by triage owners.
Adding the do-not-merge/cherry-pick-not-approved label.

To merge this cherry pick:

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[xzhangxian1008]

/open

[xzhangxian1008]

LGTM

[ti-chi-bot]

@xzhangxian1008: adding LGTM is restricted to approvers and reviewers in OWNERS files.

In response to this:

LGTM

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[windtalker]

LGTM

[xzhangxian1008]

/retest

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-6.5@cd073ea). Click here to learn what that means.
The diff coverage is 100.0000%.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-6.5     #49910   +/-   ##
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  Coverage               ?   73.6625%           
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  Files                  ?       1095           
  Lines                  ?     350839           
  Branches               ?          0           
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  Hits                   ?     258437           
  Misses                 ?      75800           
  Partials               ?      16602           

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: windtalker, XuHuaiyu, xzhangxian1008

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Needs approval from an approver in each of these files:

• OWNERS [XuHuaiyu,windtalker]

Approvers can indicate their approval by writing /approve in a comment
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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-03-13 07:02:56.274345836 +0000 UTC m=+841803.296592224: ☑️ agreed by windtalker.
• 2024-03-14 02:23:38.767792809 +0000 UTC m=+911445.790039197: ☑️ agreed by XuHuaiyu.