planner: remove the unnecessary column type from the system table mysql.bind_info

[qw4990]

What problem does this PR solve?

Issue Number: ref #48875

Problem Summary: planner: remove the unnecessary column type from the system table mysql.bind_info

What changed and how does it work?

Introduce by #49426.

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.

None

[tiprow]

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[codecov]

Codecov Report

Merging #49841 (d9f6fc7) into master (75b451c) will increase coverage by 0.4091%.
Report is 3 commits behind head on master.
The diff coverage is 72.7272%.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #49841        +/-   ##
================================================
+ Coverage   70.9244%   71.3336%   +0.4091%     
================================================
  Files          1368       1429        +61     
  Lines        396261     415811     +19550     
================================================
+ Hits         281046     296613     +15567     
- Misses        95540     100389      +4849     
+ Partials      19675      18809       -866     

Flag	Coverage Δ
integration	43.9286% <72.7272%> (?)
unit	70.9244% <ø> (ø)

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

Components	Coverage Δ
dumpling	53.9663% <ø> (ø)
parser	∅ <ø> (∅)
br	47.2311% <ø> (-5.6722%)	⬇️

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-12-27 08:57:33.415977754 +0000 UTC m=+1642544.453204682: ☑️ agreed by AilinKid.
• 2023-12-27 09:01:55.697696415 +0000 UTC m=+1642806.734923353: ☑️ agreed by hawkingrei.

[easonn7]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: AilinKid, easonn7, hawkingrei, tangenta

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• OWNERS [AilinKid,hawkingrei,tangenta]
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• pkg/session/OWNERS [easonn7]

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