executor: put SortExec and TopNExec into different files

[xzhangxian1008]

What problem does this PR solve?

Issue Number: ref #47733

Problem Summary:

What is changed and how it works?

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 @xzhangxian1008. Thanks for your PR.

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[xzhangxian1008]

/cc @SeaRise @yibin87

[codecov]

Codecov Report

Merging #48569 (1529a30) into master (50237bd) will increase coverage by 1.3823%.
Report is 1 commits behind head on master.
The diff coverage is 87.9194%.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #48569        +/-   ##
================================================
+ Coverage   71.4258%   72.8081%   +1.3823%     
================================================
  Files          1403       1428        +25     
  Lines        407207     413830      +6623     
================================================
+ Hits         290851     301302     +10451     
+ Misses        96405      93567      -2838     
+ Partials      19951      18961       -990     

Flag	Coverage Δ
integration	43.4747% <72.4832%> (?)
unit	71.4162% <87.9194%> (-0.0096%)	⬇️

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

Components	Coverage Δ
dumpling	53.9874% <ø> (ø)
parser	∅ <ø> (∅)
br	48.8187% <ø> (-4.2726%)	⬇️

[xzhangxian1008]

/cc @XuHuaiyu

[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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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: SeaRise, XuHuaiyu

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-11-14 03:02:12.424773834 +0000 UTC m=+4131730.011883979: ☑️ agreed by XuHuaiyu.
• 2023-11-14 03:18:45.230094966 +0000 UTC m=+4132722.817205106: ☑️ agreed by SeaRise.