*: fix staled table cache usage inside a transaction

[tiancaiamao]

What problem does this PR solve?

Problem Summary:

A subtask of #25293

In session1:

begin;
select * from t;   // use table cache data

then in session2:

insert into t values (xxx);  // change the table cache data
select * from t;           // and reload the cache

in session1:

select * from t;       
// read again, although the cache exist, and cache.Lease > txn.StartTS()
//  it should not use the cache

What is changed and how it works?

• Add a Start field to table cache, txn TS within [Start, Lease) can use the cache data
• Store table cache in plan, once the plan is decided, the execute result is decided

begin; sleep(1h)..., then do some write operation, and reload the cache...

In this case, comparing the txn.StartTS() with the [Start, Lease) of the cache will fail, because txn.StartTS() < Start, the cache is not used.

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

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• lcwangchao
• tangenta

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[tiancaiamao]

/run-check_dev_2

[tangenta]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 24ad0dd

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