infoschema: fix ddl_jobs table query column's type (#42536)

[ti-chi-bot]

This is an automated cherry-pick of #42536

What problem does this PR solve?

Issue Number: close #42440

Problem Summary:

What is changed and how it works?

Correct the table's definition.

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]

This pull request has not been approved.

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

The full list of commands accepted by this bot can be found here.

Reviewer can indicate their review by submitting an approval review.
Reviewer can cancel approval by submitting a request changes review.

[codecov]

Codecov Report

❗ No coverage uploaded for pull request base (release-6.5@0adf0ac). Click here to learn what that means.
The diff coverage is n/a.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-6.5     #42583   +/-   ##
================================================
  Coverage               ?   73.6577%           
================================================
  Files                  ?       1083           
  Lines                  ?     347112           
  Branches               ?          0           
================================================
  Hits                   ?     255675           
  Misses                 ?      75002           
  Partials               ?      16435           

[CbcWestwolf]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [CbcWestwolf,hawkingrei]

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]

[LGTM Timeline notifier]

Timeline:

• 2023-08-02 08:09:07.553702602 +0000 UTC m=+259231.496051132: ☑️ agreed by hawkingrei.
• 2023-08-02 08:11:11.093681536 +0000 UTC m=+259355.036030069: ☑️ agreed by CbcWestwolf.