lightning: refine fetching table structure error handling (#44801)

[ti-chi-bot]

This is an automated cherry-pick of #44801

What problem does this PR solve?

Issue Number: close #44614

Problem Summary:

What is changed and how it works?

If any errors are encountered while fetching column auto information, log a warning and refrain from adding the table structure to the table structure map. This approach allows the error to be ignored if the table is not relevant, making the importing process proceed without any issues.

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

[lance6716]

/test pull-br-integration-test

[ti-chi-bot]

@lance6716: The specified target(s) for /test were not found.
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[tiprow]

@lance6716: No presubmit jobs available for pingcap/[email protected]

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[lance6716]

/run-br-integration-test

[lance6716]

/run-br-integration-tests

[purelind]

/run-integration-br-test

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-6.5@d52ff9d). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files

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  Misses                 ?      74706           
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[dsdashun]

LGMT, better run the BR integration test to verify.

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: dsdashun, lance6716

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-08-10 07:22:26.175146094 +0000 UTC m=+183710.724162065: ☑️ agreed by lance6716.
• 2023-08-10 07:38:47.230848161 +0000 UTC m=+184691.779864147: ☑️ agreed by dsdashun.