test: fix not-stable test about ExchangePartition when wait for ddl enter next state

[jiyfhust]

What problem does this PR solve?

Issue Number: close #49777

Problem Summary:

What changed and how does it work?

Same problem with #46815, the pr #46816 solve it by sleeping 50ms to wait domain load the new schemaVersion.
In most case it works, but it is only an improvement, it did not make it stable, the tests can also fails by some times.
This pr solve it by check the new tableInfo, so it should be possible to handle it fundamentally.

This pr check the non-partition table ExchangePartitionInfo part, it will be not-null if it is in write-only state.

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 @jiyfhust. Thanks for your PR.

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[jiyfhust]

/ok-to-test

[codecov]

Codecov Report

Merging #49879 (c922e76) into master (60dbb61) will increase coverage by 0.0503%.
Report is 15 commits behind head on master.
The diff coverage is n/a.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #49879        +/-   ##
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+ Coverage   70.9365%   70.9868%   +0.0503%     
================================================
  Files          1368       1431        +63     
  Lines        396016     421737     +25721     
================================================
+ Hits         280920     299378     +18458     
- Misses        95433     103497      +8064     
+ Partials      19663      18862       -801     

Flag	Coverage Δ
integration	43.9798% <ø> (?)
unit	70.9365% <ø> (ø)

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Components	Coverage Δ
dumpling	53.9663% <ø> (ø)
parser	∅ <ø> (∅)
br	45.9940% <ø> (-6.8844%)	⬇️

[lance6716]

/auto-cc

[lance6716]

/cc @zimulala @mjonss

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-12-29 06:21:30.980484602 +0000 UTC m=+1805982.017711531: ☑️ agreed by Defined2014.
• 2023-12-29 06:23:10.894152417 +0000 UTC m=+1806081.931379344: ☑️ agreed by tangenta.