Synchronise the syntax tree with drop stats

[YangKeao]

Signed-off-by: YangKeao yangkeao@chunibyo.icu

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What is changed, added or deleted? (Required)

I synchronize the syntax tree of drop stats with the newest one. It has two changes:

1. Allow drop the stats of multiple tables at the same time.

The DROP STATS ... PARTITION ... and DROP STATS ... GLOBAL syntax are deprecated, so I didn't update them to documents.

Which TiDB version(s) do your changes apply to? (Required)

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For details, see tips for choosing the affected versions.

• master (the latest development version)
• v6.5 (TiDB 6.5 versions)
• v6.4 (TiDB 6.4 versions)
• v6.3 (TiDB 6.3 versions)
• v6.1 (TiDB 6.1 versions)
• v5.4 (TiDB 5.4 versions)
• v5.3 (TiDB 5.3 versions)
• v5.2 (TiDB 5.2 versions)
• v5.1 (TiDB 5.1 versions)
• v5.0 (TiDB 5.0 versions)

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

• This PR is translated from: Synchronise the syntax tree of drop stats docs-cn#11986
• Other reference link(s): parser: allow drop stats of multiple tables tidb#38042

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:

• shichun-0415

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[shichun-0415]

/merge

[ti-chi-bot]

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

Commit hash: c429820

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-6.5: #12061.