planner: fix hidden column may do not have a virtual expression

[AilinKid]

What problem does this PR solve?

Issue Number: close #52181

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

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None

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-03-28 07:09:47.292836664 +0000 UTC m=+2138214.315083051: ☑️ agreed by qw4990.
• 2024-03-28 07:12:54.811723819 +0000 UTC m=+2138401.833970207: ☑️ agreed by hawkingrei.

[codecov]

Codecov Report

Merging #52184 (0dc2524) into master (b942197) will decrease coverage by 17.7147%.
Report is 14 commits behind head on master.
The diff coverage is 100.0000%.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #52184         +/-   ##
=================================================
- Coverage   72.4092%   54.6946%   -17.7147%     
=================================================
  Files          1487       1601        +114     
  Lines        365652     610510     +244858     
=================================================
+ Hits         264766     333916      +69150     
- Misses        81332     253334     +172002     
- Partials      19554      23260       +3706     

Flag	Coverage Δ
integration	36.7250% <100.0000%> (?)
unit	70.4606% <100.0000%> (-1.8410%)	⬇️

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	51.5561% <ø> (+5.2267%)	⬆️

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, qw4990, XuHuaiyu, zimulala

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Needs approval from an approver in each of these files:

• pkg/expression/OWNERS [XuHuaiyu]
• pkg/table/OWNERS [zimulala]

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