planner: collect all columns meta by sync load

[hawkingrei]

What problem does this PR solve?

Issue Number: close #53141

Problem Summary:

What changed and how does it work?

In calculating cost， we need all columns' stats to get row size.

To get right result,so we need to load all stats when to sync load.

But here is a bug. ds.Columns has been pruned. it doesn't contain all columns.

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

[codecov]

Codecov Report

Attention: Patch coverage is 83.33333% with 1 lines in your changes are missing coverage. Please review.

Project coverage is 74.5223%. Comparing base (4b91fee) to head (776fab4).
Report is 1 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #53137        +/-   ##
================================================
+ Coverage   74.4490%   74.5223%   +0.0733%     
================================================
  Files          1493       1493                
  Lines        356315     429407     +73092     
================================================
+ Hits         265273     320004     +54731     
- Misses        71770      89514     +17744     
- Partials      19272      19889       +617     

Flag	Coverage Δ
integration	49.0489% <83.3333%> (?)
unit	71.2569% <83.3333%> (-1.9599%)	⬇️

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

Components	Coverage Δ
dumpling	53.9957% <ø> (-2.3014%)	⬇️
parser	∅ <ø> (∅)
br	50.2175% <ø> (+7.2262%)	⬆️

[hi-rustin]

rest LGTM

[hi-rustin]

Looks good to me. Thanks! 👍

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hi-rustin, winoros

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• pkg/planner/OWNERS [hi-rustin,winoros]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-05-13 11:45:21.599122213 +0000 UTC m=+1480875.356257784: ☑️ agreed by winoros.
• 2024-05-14 06:58:11.324428038 +0000 UTC m=+1550045.081563611: ☑️ agreed by hi-rustin.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-8.1: #53253.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.5: #53462.