*: Merge global temporary table into release-5.1

[tiancaiamao]

What problem does this PR solve?

This branch is maintained for a POC of a customer, it provides the global temporary table feature based on the 5.1 branch.
And it meant to keep update with the 5.1 branch, plus the global temporary table feature.

Problem Summary:

What is changed and how it works?

What's Changed:

Initially, this branch is generated by cherry pick those PRs based on the 5.1 branch:

commit 811253785c0ed3ac84904517a73a2667f70f19f3
Author: 王超 <cclcwangchao@hotmail.com>
Date:   Mon Jun 7 21:06:28 2021 +0800

    planner, executor: add stale read compatibility for temporary table (#25206)


commit d5a0d176db39bae07f4584df119e81170dade1eb
Author: 王超 <cclcwangchao@hotmail.com>
Date:   Wed Jun 9 13:18:29 2021 +0800

    executor: add history read compatibility for temporary table (#25237)

commit cbb6f4e64cb9e46f3db3d36c8c1abbd80ebd5b73
Author: tiancaiamao <tiancaiamao@gmail.com>
Date:   Wed Jun 9 18:48:30 2021 +0800

    *: add global system variable `tmp_table_size` (#24827)

commit 0ed8eafa9bf269eb2c3974ce67184aa05fbabc38
Author: 王超 <cclcwangchao@hotmail.com>
Date:   Wed Jun 9 21:14:29 2021 +0800

    executor: add tablesample compatibility for temporary table (#25288)

commit 5a1606740c5225175b5b5a64bad54cc83d3ff18c
Author: Howie <haoweili35@gmail.com>
Date:   Fri Jun 11 16:50:35 2021 +0800

    ddl: add create table like check for temporary table (#25082)

commit bd11917ca096374ca1d7915d5985f49cb111be3e
Author: tiancaiamao <tiancaiamao@gmail.com>
Date:   Tue Jun 15 14:08:37 2021 +0800

    bindinfo,planner: report error when creating sql binding on temporary table (#25058)

commit ed686d1963f472b813c528543fee729a629242fb
Author: tiancaiamao <tiancaiamao@gmail.com>
Date:   Thu Jun 17 16:20:37 2021 +0800

    executor: fix a stupid mistake in `filterTemporaryTableKeys()` function (#25521)

commit 9f18723e6af2e1bb10fb013a75c2397a7a575e2c
Author: tiancaiamao <tiancaiamao@gmail.com>
Date:   Mon Jun 21 16:46:53 2021 +0800

    *: fix bug that write on temporary table send request to TiKV (#25535)

How it Works:

This draft issue can make us easier to know the different between this branch and 5.1.
The branch will be maintained like this:

• Cherry-pick temporary table related bug fixes from the master branch
• Merge 5.1 branch regularly

Until the POC is over and we finally provide a official release branch that contains the global temporary table feature.

Check List

Tests

• Unit test
• Integration test

Release note

• No release note

[tiancaiamao]

/run-check_dev

[bb7133]

/merge

[ti-chi-bot]

@bb7133: /merge in this pull request requires 2 approval(s).

In response to this:

/merge

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[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• bb7133
• djshow832

To complete the pull request process, please ask the reviewers in the list to review by filling /cc @reviewer in the comment.
After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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[bb7133]

/merge

[ti-chi-bot]

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

Commit hash: 19c722d

[ti-chi-bot]

@tiancaiamao: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.