dumpling: use I_S to get table list for TiDB and add database to WHERE (#57894)

[ti-chi-bot]

This is an automated cherry-pick of #57894

What problem does this PR solve?

Issue Number: close #57902

Problem Summary:

What changed and how does it work?

by copilot

dumpling/export/dump.go: The logic for preparing the table list to dump has been updated to optimize the performance of reading INFORMATION_SCHEMA.TABLES for TiDB. It includes conditional checks and refactored code.
dumpling/export/sql.go: The function ListAllDatabasesTables has been refactored for improved readability and efficiency, particularly when querying INFORMATION_SCHEMA.TABLES. The function CheckIfSeqExists has been renamed to checkIfSeqExists.
dumpling/export/sql_test.go: Corresponding test cases have been updated to reflect the renaming of the function CheckIfSeqExists to checkIfSeqExists.

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.

/dumpling-patch -u root -P 4000 -h xxx --filetype csv -t 16 -r 200000 -F 256MiB --database sb10wnormal1 --loglevel debug
[2024/12/02 10:50:39.356 +00:00] [INFO] [versions.go:54] ["Welcome to dumpling"]...
...
[2024/12/02 10:50:41.123 +00:00] [INFO] [main.go:82] ["dump data successfully, dumpling will exit now"]

root@benchtoolset2-0:/# ll export-2024-12-02T10\:50\:39Z/
total 3832
drwxrwxrwx 2 root root    4096 Dec  2 10:50 ./
drwxr-xr-x 1 root root    4096 Dec  2 10:50 ../
-rw-r--r-- 1 root root     150 Dec  2 10:50 metadata
-rw-r--r-- 1 root root     140 Dec  2 10:50 sb10wnormal1-schema-create.sql
-rw-r--r-- 1 root root     391 Dec  2 10:50 sb10wnormal1.sbtest1-schema.sql
-rw-r--r-- 1 root root 1947727 Dec  2 10:50 sb10wnormal1.sbtest1.0000000010000.csv
-rw-r--r-- 1 root root     391 Dec  2 10:50 sb10wnormal1.sbtest2-schema.sql
-rw-r--r-- 1 root root 1947783 Dec  2 10:50 sb10wnormal1.sbtest2.0000000010000.csv

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 48.78049% with 21 lines in your changes missing coverage. Please review.

Please upload report for BASE (release-8.5@727b279). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-8.5     #57936   +/-   ##
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  Coverage               ?   56.8985%           
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  Files                  ?       1772           
  Lines                  ?     626856           
  Branches               ?          0           
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  Hits                   ?     356672           
  Misses                 ?     246015           
  Partials               ?      24169           

Flag	Coverage Δ
integration	36.8287% <ø> (?)
unit	72.5465% <48.7804%> (?)

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Components	Coverage Δ
dumpling	52.8711% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	52.2463% <0.0000%> (?)

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

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

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-12-03 08:46:45.908239792 +0000 UTC m=+1144593.527894308: ☑️ agreed by lance6716.
• 2024-12-03 08:49:12.466562977 +0000 UTC m=+1144740.086217492: ☑️ agreed by tangenta.