sessionctx: fix var typo

[shawn0915]

What problem does this PR solve?

Issue Number: ref #45892

Problem Summary: fix typo

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

[sre-bot]

All committers have signed the CLA.

[ti-chi-bot]

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[ti-chi-bot]

Hi @shawn0915. Thanks for your PR.

I'm waiting for a pingcap member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

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[tiprow]

Hi @shawn0915. Thanks for your PR.

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[shawn0915]

@winoros could you help take a look?

[wuhuizuo]

/ok-to-test

[hawkingrei]

/test all

[codecov]

Codecov Report

Merging #47609 (ef8f14f) into master (79db4ec) will increase coverage by 2.2306%.
Report is 62 commits behind head on master.
The diff coverage is n/a.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #47609        +/-   ##
================================================
+ Coverage   71.9034%   74.1340%   +2.2306%     
================================================
  Files          1396       1429        +33     
  Lines        405035     428854     +23819     
================================================
+ Hits         291234     317927     +26693     
+ Misses        94188      91603      -2585     
+ Partials      19613      19324       -289     

Flag	Coverage Δ
integration	43.0787% <ø> (?)
unit	73.3347% <ø> (+1.4313%)	⬆️

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

Components	Coverage Δ
dumpling	53.9913% <ø> (ø)
parser	∅ <ø> (∅)
br	49.6789% <ø> (-3.2747%)	⬇️

[hawkingrei]

/test tiprow_fast_test

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@hawkingrei: The specified target(s) for /test were not found.
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[shawn0915]

@hawkingrei please confirm again, thank you.

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-10-18 06:53:08.713351472 +0000 UTC m=+1812786.300461601: ☑️ agreed by zimulala.
• 2023-10-25 01:35:48.736218971 +0000 UTC m=+2398546.323329114: ☑️ agreed by tiancaiamao.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Defined2014, tiancaiamao, zimulala

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[Defined2014]

/test mysql-test

[tiprow]

@Defined2014: The specified target(s) for /test were not found.
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/test mysql-test

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[Defined2014]

/test unit-test

[tiprow]

@Defined2014: The specified target(s) for /test were not found.
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Use /test all to run all jobs.

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[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #47953.