statistics: fix some problem related to stats async load

[winoros]

What problem does this PR solve?

Issue Number: close #57722, close #57735

Problem Summary:

What changed and how does it work?

Version0 means that column stats is not created via the ANALYZE command. We should not use it to update the Last Analyze Timestamp.

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.

修复没有收集过统计信息的表的上次 ANALYZE 时间可能不为 NULL 的问题
Fix the issue that an unanalyzed table's last analyze time may not be NULL.

[codecov]

Codecov Report

Attention: Patch coverage is 81.51986% with 107 lines in your changes missing coverage. Please review.

Project coverage is 73.5988%. Comparing base (b11d034) to head (176f67f).
Report is 16 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #57723        +/-   ##
================================================
+ Coverage   72.8126%   73.5988%   +0.7862%     
================================================
  Files          1677       1707        +30     
  Lines        463954     473108      +9154     
================================================
+ Hits         337817     348202     +10385     
+ Misses       105277     103386      -1891     
- Partials      20860      21520       +660     

Flag	Coverage Δ
integration	46.1872% <20.3478%> (?)
unit	72.2215% <81.5198%> (+0.0065%)	⬆️

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

Components	Coverage Δ
dumpling	52.7673% <100.0000%> (ø)
parser	∅ <ø> (∅)
br	45.7036% <76.1146%> (+0.2014%)	⬆️

[winoros]

/retest

[wuhuizuo]

/retest

[wuhuizuo]

/retest

[wuhuizuo]

/retest

[purelind]

/retest

[Rustin170506]

rest LGTM

/hold

Also please address the comments that I sent to you offline. Thank you!

[Rustin170506]

Looks good to me. Thanks! 👍

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, Rustin170506

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• pkg/statistics/OWNERS [Rustin170506,hawkingrei]

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[winoros]

/unhold

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.1: #57772.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #57773.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.1: #57774.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.5: #57775.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.5: #57776.