fix(mtr): Added mtr about "add CACHE_ITEM type in MysqlExpression" (#342)

[duanfuxiang0]

Summary about this PR

Issue Number: ref #342
add mtr for this issue

Tests Check List

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

Changelog

• New Feature
• Bug Fix
• Improvement
• Performance Improvement
• Build/Testing/CI/CD
• Documentation
• Not for changelog (changelog entry is not required)

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features

[CLAassistant]

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[mergify]

This pull request's title should follow requirements next. @gougexuanli please check it 👇.

Valid format:

fix(vc): fix sth..... (#3306)
  ^         ^---------^  ^----^
  |         |            |
  |         +            +-> you issue id.
  |         |
  |         +-> Summary in present tense.
  |
  +-------> Type: feat, fix, docs, workflow, style, refactor, test, website, chore

Valid types:

• feat: new feature for stonedb
• fix: bug fix for stonedb
• docs: changes to the documentation
• workflow: ci/cd in .github
• refactor: refactoring production code, eg. renaming a variable
• style: formatting, missing semi colons, etc; no production code change
• test: adding missing tests, refactoring tests; no production code change
• website
• chore: updating grunt tasks etc; no production code change

[mergify]

Thanks for the contribution!
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Please review the labels and make any necessary changes.

[hustjieke]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you sign our Contributor License Agreement before we can accept your contribution.

dfx seems not to be a GitHub user. You need a GitHub account to be able to sign the CLA. If you have already a GitHub account, please add the email address used for this commit to your account.
You have signed the CLA already but the status is still pending? Let us recheck it.

@gougexuanli Thanks for your first pr, please sign CLA first.

[isredstar]

LGTM

[hustjieke]

LGTM