executor: check the error returned by handleNoDelay (#36105)

[ti-srebot]

cherry-pick #36105 to release-6.1
You can switch your code base to this Pull Request by using git-extras:

# In tidb repo:
git pr https://github.com/pingcap/tidb/pull/36191

After apply modifications, you can push your change to this PR via:

git push git@github.com:ti-srebot/tidb.git pr/36191:release-6.1-28c96008a9af

---

Signed-off-by: zyguan zhongyangguan@gmail.com

What problem does this PR solve?

Issue Number: close #35105

Problem Summary:
As described in #35105, statements might be partial commited by explain analyze.

What is changed and how it works?

Also check the error returned by handleNoDelay (otherwise the err gets ignored when handled is false).

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

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

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• cfzjywxk
• xhebox

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[ti-srebot]

/run-all-tests

[ti-srebot]

@zyguan you're already a collaborator in bot's repo.

[cfzjywxk]

@zyguan
Please resolve the conflicts.

[sre-bot]

Code Coverage Details: https://codecov.io/github/pingcap/tidb/commit/579b69afd18d97e48174c9e4bb25cb722246c695

[xhebox]

/merge

[ti-chi-bot]

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

Commit hash: 579b69a

[VelocityLight]

This pull request is closed because the related issue is triaged "Won't Fix".
If it's still needed, you can reopen it or just regenerate it using bot,
see:

• https://prow.tidb.io/command-help#cherrypick
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You can find more details at:

• https://internals.tidb.io/t/topic/785