executor: enable hash join v2 by default for tests

[windtalker]

What problem does this PR solve?

Issue Number: ref #53127

Problem Summary:
This pr enable hash join v2 for tests

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

[tiprow]

Hi @windtalker. Thanks for your PR.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 56.3233%. Comparing base (abf7e31) to head (24ab093).
Report is 1 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #56790         +/-   ##
=================================================
- Coverage   73.3543%   56.3233%   -17.0311%     
=================================================
  Files          1635       1760        +125     
  Lines        452734     631632     +178898     
=================================================
+ Hits         332100     355756      +23656     
- Misses       100272     251860     +151588     
- Partials      20362      24016       +3654     

Flag	Coverage Δ
integration	36.9698% <ø> (?)
unit	72.4903% <ø> (+0.0058%)	⬆️

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

Components	Coverage Δ
dumpling	52.9478% <ø> (ø)
parser	∅ <ø> (∅)
br	52.6790% <ø> (+6.6623%)	⬆️

[xzhangxian1008]

LGTM

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-10-23 01:50:39.361067317 +0000 UTC m=+402240.057857924: ☑️ agreed by xzhangxian1008.
• 2024-10-23 02:30:29.88162031 +0000 UTC m=+404630.578410936: ☑️ agreed by XuHuaiyu.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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Needs approval from an approver in each of these files:

• OWNERS [XuHuaiyu]
• pkg/sessionctx/variable/OWNERS [yudongusa]

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