executor: fix a bug that global temporary table send cop request (#58882)

[ti-chi-bot]

This is an automated cherry-pick of #58882

What problem does this PR solve?

Issue Number: close #58875

Problem Summary:

What changed and how does it work?

For temporary table, we set a 'dummy' flag to its TableReader/IndexReader/IndexReader etc
So it would be a dummy operation and not sending coprocessor request to tikv.

The bug is that in executor/builder.go, we have executorBuilder and dataReaderBuilder, two difficult code branch.
The dummy is only set in the executorBuilder...

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

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

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Additional details and impacted files

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-02-07 02:34:10.998918989 +0000 UTC m=+411922.531330971: ☑️ agreed by lcwangchao.
• 2025-02-07 08:48:41.569009909 +0000 UTC m=+763.965231971: ☑️ agreed by tiancaiamao.