infoschema: update raw args to make it drop correct table in RENAME TABLE (#44585)

[ti-chi-bot]

This is an automated cherry-pick of #44585

What problem does this PR solve?

Issue Number: close #43714

Problem Summary:

Reproducible step:

create table test.t1 (id int primary key,a text);
insert test.t1 values(1,'334'),(4,'3443435'),(5,'fdf43t536653');
rename table test.t1 to mysql.t1;
SELECT * FROM information_schema.TABLES WHERE (TABLE_SCHEMA = 'mysql') AND (TABLE_NAME = 't1');

#43341 changes the behavior of RENAME TABLE: it takes two schema versions to complete. However, applyDiff() doesn't handle two SchemaDiffs properly. The same table is created twice in infoschema, causing the phantom described in #43714.

What is changed and how it works?

During applying schema diff, we check if the table already exists before creating a new table. Thus, we can skip the second creation.

Other alternative fixes include

• Drop the table first and then create a new table(like what CREATE TABLE with foreign key does).
  • Change job.Args at second step, so that it contains the new schema ID.
  • There are risks if we change job.Args, it is hard to guarantee all the components that relying on this work correctly.
• Check if the old table is dropped. If it is not found, skip creating the second table.

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

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

[Ivy-YinSu]

/test check-dev2

[Ivy-YinSu]

/test unit-test

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: crazycs520, zimulala

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-06-12 12:52:00.216743638 +0000 UTC m=+3716.631347711: ☑️ agreed by crazycs520.
• 2023-06-12 13:24:02.271445134 +0000 UTC m=+5638.686049213: ☑️ agreed by zimulala.