executor: fix nil pointer for query on tikv_region_status with non-exist table id (#57534)

ti-chi-bot commented 2 days ago

This is an automated cherry-pick of #57534

What problem does this PR solve?

Issue Number: close #57530

Problem Summary:

What changed and how does it work?

select * from TIKV_REGION_STATUS where table_id = 81920 when the table id does not exist, the allRegionsInfo is nil, We should check it to avoid runtime nil pointer error.

Check List

Tests

[ ] Unit test
[X] 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

ti-chi-bot[bot] commented 2 days ago

This cherry pick PR is for a release branch and has not yet been approved by triage owners. Adding the do-not-merge/cherry-pick-not-approved label.

To merge this cherry pick:

It must be approved by the approvers firstly.
AFTER it has been approved by approvers, please wait for the cherry-pick merging approval from triage owners.

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ti-chi-bot[bot] commented 2 days ago

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Defined2014

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/pingcap/tidb/blob/release-8.5/OWNERS)~~ [Defined2014] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

ti-chi-bot[bot] commented 2 days ago

[LGTM Timeline notifier]

Timeline:

2024-11-20 14:36:04.481646554 +0000 UTC m=+42352.101301070: :ballot_box_with_check: agreed by Defined2014.

codecov[bot] commented 2 days ago

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Please upload report for BASE (release-8.5@f2efff9). Learn more about missing BASE report.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## release-8.5 #57565 +/- ## ================================================ Coverage ? 56.8007% ================================================ Files ? 1770 Lines ? 626214 Branches ? 0 ================================================ Hits ? 355694 Misses ? 246456 Partials ? 24064 ``` | [Flag](https://app.codecov.io/gh/pingcap/tidb/pull/57565/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | Coverage Δ | | |---|---|---| | [integration](https://app.codecov.io/gh/pingcap/tidb/pull/57565/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | `36.6628% <100.0000%> (?)` | | | [unit](https://app.codecov.io/gh/pingcap/tidb/pull/57565/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | `72.4847% <0.0000%> (?)` | | Flags with carried forward coverage won't be shown. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap#carryforward-flags-in-the-pull-request-comment) to find out more. | [Components](https://app.codecov.io/gh/pingcap/tidb/pull/57565/components?src=pr&el=components&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | Coverage Δ | | |---|---|---| | [dumpling](https://app.codecov.io/gh/pingcap/tidb/pull/57565/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | `52.9478% <0.0000%> (?)` | | | [parser](https://app.codecov.io/gh/pingcap/tidb/pull/57565/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | `∅ <0.0000%> (?)` | | | [br](https://app.codecov.io/gh/pingcap/tidb/pull/57565/components?src=pr&el=component&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=pingcap) | `52.2395% <0.0000%> (?)` | |

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