statistics: optimize stats delta dumping with batch processing

[Rustin170506]

What problem does this PR solve?

Issue Number: ref #57869

ref #58890
ref #58884
ref #58885
ref #58993
ref #59022

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

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[Benjamin2037]

LGTM

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-01-16 12:46:04.974874024 +0000 UTC m=+209036.429920173: ☑️ agreed by Benjamin2037.
• 2025-01-16 12:48:08.107243076 +0000 UTC m=+209159.562289224: ☑️ agreed by winoros.

[GMHDBJD]

LGTM

[codecov]

Codecov Report

Attention: Patch coverage is 76.82927% with 57 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-8.5-20250114-v8.5.0@722347b). Learn more about missing BASE report.

Additional details and impacted files

@@                       Coverage Diff                        @@
##             release-8.5-20250114-v8.5.0     #58996   +/-   ##
================================================================
  Coverage                               ?   57.1991%           
================================================================
  Files                                  ?       1779           
  Lines                                  ?     630866           
  Branches                               ?          0           
================================================================
  Hits                                   ?     360850           
  Misses                                 ?     245068           
  Partials                               ?      24948           

Flag	Coverage Δ
integration	37.3379% <67.0731%> (?)
unit	72.4062% <74.7967%> (?)

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

Components	Coverage Δ
dumpling	52.8711% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	55.2477% <0.0000%> (?)

[Benjamin2037]

/retest

[Rustin170506]

/retest

[Rustin170506]

/retest

[yinsustart]

/test check-dev2

[tiprow]

@yinsustart: No presubmit jobs available for pingcap/[email protected]

In response to this:

/test check-dev2

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes-sigs/prow repository.

[Rustin170506]

/retest

[Rustin170506]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: GMHDBJD, Rustin170506, winoros, yudongusa

The full list of commands accepted by this bot can be found here.

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Needs approval from an approver in each of these files:

• OWNERS [GMHDBJD,Rustin170506,winoros]
• pkg/disttask/OWNERS [GMHDBJD]
• pkg/domain/OWNERS [GMHDBJD]
• pkg/executor/importer/OWNERS [GMHDBJD]
• pkg/lightning/OWNERS [GMHDBJD]
• pkg/planner/OWNERS [Rustin170506,winoros]
• pkg/sessionctx/variable/OWNERS [yudongusa]
• pkg/statistics/OWNERS [Rustin170506,winoros]
• pkg/table/OWNERS [GMHDBJD]

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