executor: support detaching the IndexReader and IndexLookUp

[YangKeao]

What problem does this PR solve?

Issue Number: close #54799

Problem Summary:

Previously, the IndexReader and IndexLookUp didn't support lazy cursor fetch.

What changed and how does it work?

Now, the lazy cursor fetch function should also support IndexReader and IndexLookUp executors. It's implemented by adding Detach function on these executors.

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.

Release note

None

[codecov]

Codecov Report

Attention: Patch coverage is 61.76471% with 13 lines in your changes missing coverage. Please review.

Project coverage is 56.5468%. Comparing base (07f7774) to head (dfdce6c).
Report is 18 commits behind head on master.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #54800         +/-   ##
=================================================
- Coverage   74.7413%   56.5468%   -18.1945%     
=================================================
  Files          1555       1680        +125     
  Lines        363372     616521     +253149     
=================================================
+ Hits         271589     348623      +77034     
- Misses        72138     244443     +172305     
- Partials      19645      23455       +3810     

Flag	Coverage Δ
integration	37.9514% <5.8823%> (?)
unit	72.3176% <61.7647%> (-1.3483%)	⬇️

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

Components	Coverage Δ
dumpling	52.9656% <ø> (-2.2339%)	⬇️
parser	∅ <ø> (∅)
br	52.3800% <ø> (+4.7045%)	⬆️

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: lcwangchao, xhebox

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• OWNERS [lcwangchao,xhebox]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-07-23 07:09:52.488911067 +0000 UTC m=+942614.479852537: ☑️ agreed by lcwangchao.
• 2024-07-23 09:10:20.480317914 +0000 UTC m=+949842.471259381: ☑️ agreed by xhebox.

[hawkingrei]

/retest