test(tianmu): add order by sentence in the mtr case various_join.test

[Xinqiangxu]

Summary about this PR

Issue Number: close #issue_number_you_created

Tests Check List

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Changelog

• New Feature
• Bug Fix
• Performance Improvement
• Build/Testing/CI/CD
• Documentation
• Not for changelog (changelog entry is not required)

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features

[mergify]

Thanks for the contribution!
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Please review the labels and make any necessary changes.

[zhongshengstoneatom]

LGTM

[codecov]

Codecov Report

Patch coverage: 88.88% and project coverage change: -0.07 ⚠️

Comparison is base (6b369e5) 55.17% compared to head (910beaa) 55.10%.

Additional details and impacted files

@@                 Coverage Diff                 @@
##           stonedb-5.7-dev    #1886      +/-   ##
===================================================
- Coverage            55.17%   55.10%   -0.07%     
===================================================
  Files                 2031     2031              
  Lines               431521   431521              
===================================================
- Hits                238085   237805     -280     
- Misses              193436   193716     +280     

Impacted Files	Coverage Δ
storage/tianmu/core/temp_table.cpp	74.64% <ø> (+1.70%)	⬆️
storage/tianmu/optimizer/aggregation_algorithm.cpp	56.28% <83.33%> (+0.32%)	⬆️
storage/tianmu/core/engine_execute.cpp	58.56% <100.00%> (ø)
storage/tianmu/core/query_compile.cpp	65.36% <100.00%> (+0.90%)	⬆️

... and 96 files with indirect coverage changes

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