statistics: fix incorrect datetime value when loading stats (#40084)

[ti-chi-bot]

This is an automated cherry-pick of #40084

What problem does this PR solve?

Issue Number: close #39336

Problem Summary:

What is changed and how it works?

Invalid date values may be inserted into table under some relaxed sql mode. Those values may exist in statistics. Hence, when reading statistics, we should skip invalid date check.

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]

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• fixdb

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[fixdb]

+1

[wuhuizuo]

/hold high priority for trunk branch

[ti-chi-bot]

/unhold

[qw4990]

/test unit-test

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[qw4990]

/test unit-test

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: fixdb, qw4990, time-and-fate

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-08-10 07:29:20.828266002 +0000 UTC m=+184125.377281974: ☑️ agreed by qw4990.
• 2023-08-17 03:34:19.112443366 +0000 UTC m=+774823.661459353: ☑️ agreed by time-and-fate.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-6.5@4d466ba). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-6.5     #40136   +/-   ##
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  Coverage               ?   73.9522%           
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  Files                  ?       1083           
  Lines                  ?     350518           
  Branches               ?          0           
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  Hits                   ?     259216           
  Misses                 ?      74807           
  Partials               ?      16495           

[qw4990]

/test unit-test

[qw4990]

/test unit-test

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@qw4990: No presubmit jobs available for pingcap/tidb@release-6.5

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/test unit-test

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[qw4990]

/test unit-test

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@qw4990: No presubmit jobs available for pingcap/tidb@release-6.5

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