Revise the result in the Semi join section in "Explain Statements That Use Subqueries"

[en-jin19]

What is changed, added or deleted? (Required)

The result in the Semi join section in "Explain Statements That Use Subqueries" in English version was different from the Chinese version. In this PR, the English version is revised to the same content of the Chinese version.

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What is the related PR or file link(s)?

• This PR is translated from:
• Other reference link(s): The explain result of Semi join (correlated subquery) in English edition may wrong (Document error Feedback) #7710

Do your changes match any of the following descriptions?

• Delete files
• Change aliases
• Need modification after applied to another branch
• Might cause conflicts after applied to another branch

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• TomShawn

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[TomShawn]

/remove-status LGT1
/status LGT2

[TomShawn]

/merge

[ti-chi-bot]

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

Commit hash: c81eaef

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #7770.

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #7771.

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #7772.

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #7773.

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #7774.