core: batch get region size (#7252)

[ti-chi-bot]

This is an automated cherry-pick of #7252

What problem does this PR solve?

Issue Number: Close #7248.

What is changed and how does it work?

Check List

Tests

• Unit test

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• lhy1024
• nolouch

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 75.57%. Comparing base (63bf970) to head (61253b9).

❗ Current head 61253b9 differs from pull request most recent head 91f5a45. Consider uploading reports for the commit 91f5a45 to get more accurate results

Additional details and impacted files

@@               Coverage Diff               @@
##           release-6.1    #7693      +/-   ##
===============================================
+ Coverage        75.50%   75.57%   +0.06%     
===============================================
  Files              308      308              
  Lines            30596    30599       +3     
===============================================
+ Hits             23102    23125      +23     
+ Misses            5489     5478      -11     
+ Partials          2005     1996       -9     

Flag	Coverage Δ
unittests	75.57% <100.00%> (+0.06%)	⬆️

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[nolouch]

/merge

[ti-chi-bot]

@nolouch: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Details

Commit hash: 61253b9

[ti-chi-bot]

@ti-chi-bot: Your PR was out of date, I have automatically updated it for you.

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

Details

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