PageStorage refine : Split the different version of PageStorage

[jiaqizho]

What problem does this PR solve?

Issue Number:

Problem Summary:

relative to #3269 part 1

What is changed and how it works?

Proposal: refine pagestorage

What's Changed:

Related changes

• PR to update pingcap/docs/pingcap/docs-cn:
• Need to cherry-pick to the release branch:

Check List

Tests

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

Side effects

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• JaySon-Huang

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[jiaqizho]

/assign @jiaqizho

[jiaqizho]

/run-all-tests

[JaySon-Huang]

Do not merge until branch "release-5.3" is created

[jiaqizho]

/run-all-tests

[jiaqizho]

/run-all-tests

[jiaqizho]

/merge

[ti-chi-bot]

@jiaqizho: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

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[ti-chi-bot]

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

Commit hash: 2a0ff6a