executor: fix incorrect result when hash agg spill is triggered

[xzhangxian1008]

What problem does this PR solve?

Issue Number: close #55290

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.

Fix the issue that getting incorrect result when hash agg spill is triggered

[tiprow]

Hi @xzhangxian1008. Thanks for your PR.

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[xzhangxian1008]

/cc @windtalker @XuHuaiyu

[windtalker]

LGTM

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-08-09 11:15:25.488536102 +0000 UTC m=+609855.355635191: ☑️ agreed by XuHuaiyu.
• 2024-08-09 14:25:19.019261976 +0000 UTC m=+621248.886361064: ☑️ agreed by windtalker.

[easonn7]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: easonn7, windtalker, XuHuaiyu

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Needs approval from an approver in each of these files:

• OWNERS [XuHuaiyu,windtalker]
• pkg/sessionctx/variable/OWNERS [easonn7]

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[codecov]

Codecov Report

Attention: Patch coverage is 41.37931% with 17 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-8.1@b86b204). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-8.1     #55336   +/-   ##
================================================
  Coverage               ?   71.1721%           
================================================
  Files                  ?       1466           
  Lines                  ?     422702           
  Branches               ?          0           
================================================
  Hits                   ?     300846           
  Misses                 ?     101350           
  Partials               ?      20506           

Flag	Coverage Δ
unit	71.1721% <41.3793%> (?)

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

Components	Coverage Δ
dumpling	52.9656% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	41.2915% <0.0000%> (?)

[xzhangxian1008]

/retest

[tiprow]

@xzhangxian1008: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/retest

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[xzhangxian1008]

/retest

[tiprow]

@xzhangxian1008: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/retest

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[xzhangxian1008]

/retest

[tiprow]

@xzhangxian1008: Cannot trigger testing until a trusted user reviews the PR and leaves an /ok-to-test message.

In response to this:

/retest

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.