parser, infoschema, executor: Add information_schema.keywords (#48807)

[ti-chi-bot]

This is an automated cherry-pick of #48807

What problem does this PR solve?

Issue Number: close #48801

Problem Summary:

What changed and how does it work?

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.

The `information_schema.keywords` table was added to make it easier to see what keywords the server has.

[dveeden]

/retest

[codecov]

Codecov Report

Attention: Patch coverage is 81.81818% with 2 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-7.5@c6e52c0). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-7.5     #54219   +/-   ##
================================================
  Coverage               ?   72.0065%           
================================================
  Files                  ?       1412           
  Lines                  ?     410932           
  Branches               ?          0           
================================================
  Hits                   ?     295898           
  Misses                 ?      95147           
  Partials               ?      19887           

Flag	Coverage Δ
unit	72.0065% <81.8181%> (?)

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

Components	Coverage Δ
dumpling	53.9913% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	53.4745% <0.0000%> (?)

[bb7133]

LGTM

[dveeden]

/retest

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bb7133, tangenta

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Needs approval from an approver in each of these files:

• OWNERS [bb7133,tangenta]
• pkg/infoschema/OWNERS [tangenta]
• pkg/parser/OWNERS [bb7133,tangenta]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-06-28 15:48:46.254130655 +0000 UTC m=+993852.739619483: ☑️ agreed by bb7133.
• 2024-07-04 12:39:36.78899186 +0000 UTC m=+1500903.274480691: ☑️ agreed by tangenta.