planner: add missing exchange between hash-partition window and single-partition window (#36025)

[ti-srebot]

cherry-pick #36025 to release-6.1
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# In tidb repo:
git pr https://github.com/pingcap/tidb/pull/36052

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git push [email protected]:ti-srebot/tidb.git pr/36052:release-6.1-fb6f6a4fda0f

---

What problem does this PR solve?

Issue Number: close #35990

Problem Summary:

miss exchange between hash-partition window and single-partition window

What is changed and how it works?

check the single-partition property when build mpp windows.

Check List

Tests

• Unit test

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• LittleFall
• chrysan

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[ti-srebot]

/run-all-tests

[ti-srebot]

@LittleFall you're already a collaborator in bot's repo.

[fixdb]

+1

[ti-chi-bot]

@fixdb: Thanks for your review. The bot only counts approvals from reviewers and higher roles in list, but you're still welcome to leave your comments.

In response to this:

+1

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[chrysan]

/merge

[ti-chi-bot]

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

In response to this:

/merge

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[sre-bot]

Code Coverage Details: https://codecov.io/github/pingcap/tidb/commit/32966318494f321e11ba293a7dc8279d0bba7845

[LittleFall]

/merge

[ti-chi-bot]

@LittleFall: /merge is only allowed for the committers, you can assign this pull request to the committer in list by filling /assign @committer in the comment to help merge this pull request.

In response to this:

/merge

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[chrysan]

/merge

[ti-chi-bot]

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

Commit hash: 3296631