expression: Report error when empty pattern in regexp related function

[yibin87]

What problem does this PR solve?

Issue Number: close #53221

Problem Summary:
Tidb report error when these functions are executed in row by row mode. But failed to check it in vector mode.

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.

None

[tiprow]

Hi @yibin87. Thanks for your PR.

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[yibin87]

/cc @xzhangxian1008 @lcwangchao

[yibin87]

/cc @windtalker

[yibin87]

/hold

[yibin87]

hold to wait for copr-test pr tikv/copr-test#183 merged

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 74.6630%. Comparing base (41ce0a5) to head (503bd82).
Report is 5 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #53230        +/-   ##
================================================
+ Coverage   72.4118%   74.6630%   +2.2512%     
================================================
  Files          1493       1493                
  Lines        429344     430822      +1478     
================================================
+ Hits         310896     321665     +10769     
+ Misses        99146      89288      -9858     
- Partials      19302      19869       +567     

Flag	Coverage Δ
integration	49.2118% <20.0000%> (?)
unit	71.2510% <100.0000%> (-0.0469%)	⬇️

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

Components	Coverage Δ
dumpling	53.9957% <ø> (ø)
parser	∅ <ø> (∅)
br	50.4316% <ø> (+8.9914%)	⬆️

[xzhangxian1008]

LGTM

[yibin87]

/unhold

[windtalker]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: windtalker, xzhangxian1008

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-05-14 01:49:28.08989497 +0000 UTC m=+1531521.847030538: ☑️ agreed by xzhangxian1008.
• 2024-05-14 02:15:56.793617287 +0000 UTC m=+1533110.550752856: ☑️ agreed by windtalker.

[tiprow]

@yibin87: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
fast_test_tiprow	503bd82	link	true	/test fast_test_tiprow

Full PR test history. Your PR dashboard.

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