importinto/lightning: check max row size when parsing csv to avoid OOM

[D3Hunter]

What problem does this PR solve?

Issue Number: close #58590

Problem Summary:

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)

import a file with 20 fields, each field is about 10+M, total row size is about 266M

mysql> import into t from '/playground/lightning/single-file/long-row.csv';
ERROR 1105 (HY000): size of row cannot exceed the max value of txn-entry-size-limit
mysql>

• 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

All modified and coverable lines are covered by tests ✅

Project coverage is 74.3149%. Comparing base (b11cce7) to head (8ecabbd).
Report is 22 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #58592        +/-   ##
================================================
+ Coverage   73.5283%   74.3149%   +0.7865%     
================================================
  Files          1680       1710        +30     
  Lines        464577     478215     +13638     
================================================
+ Hits         341596     355385     +13789     
+ Misses       102128     101300       -828     
- Partials      20853      21530       +677     

Flag	Coverage Δ
integration	46.4231% <86.6666%> (?)
unit	72.8702% <100.0000%> (+0.5891%)	⬆️

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

Components	Coverage Δ
dumpling	52.6910% <ø> (ø)
parser	∅ <ø> (∅)
br	45.8479% <ø> (+0.0883%)	⬆️

[D3Hunter]

@lance6716

[lance6716]

in all cases, parser.checkRowLen is true when running here?

[D3Hunter]

only public API check it, i.e. ReadRow/ReadColumns/ReadUntilTerminator

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: GMHDBJD, lance6716

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-12-31 07:36:17.40224324 +0000 UTC m=+422312.758247800: ☑️ agreed by lance6716.
• 2024-12-31 09:10:33.070245252 +0000 UTC m=+427968.426249817: ☑️ agreed by GMHDBJD.