statements: add privilege details (#21815)

[ti-chi-bot]

This is an automated cherry-pick of #21815

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[gemini-code-assist]

Summary of Changes

Hello @ti-chi-bot, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request improves the clarity and completeness of the TiDB documentation by adding explicit privilege requirements for several key SQL statements and information schema views. It ensures users understand the necessary permissions for CREATE BINDING, SHOW PROCESSLIST, and INFORMATION_SCHEMA.CLUSTER_PROCESSLIST, and also clarifies how to view cluster-wide process information.

Highlights

• Documentation for INFORMATION_SCHEMA.CLUSTER_PROCESSLIST: Added a new "Permissions" section, clarifying that users without the PROCESS privilege can only view their own sessions.
• Documentation for CREATE BINDING statement: Introduced a "Permissions" section, specifying that the SUPER privilege is required for its execution.
• Documentation for SHOW PROCESSLIST: Enhanced the documentation by adding a "Permissions" section, detailing that without the PROCESS privilege, only the user's own sessions are displayed.
• Clarification for SHOW PROCESSLIST: Updated the SHOW PROCESSLIST overview to explicitly guide users to INFORMATION_SCHEMA.CLUSTER_PROCESSLIST for viewing cluster-wide process lists.

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[gemini-code-assist]

Code Review

This pull request adds a Permissions section to the documentation for PROCESSLIST, CREATE BINDING, and SHOW PROCESSLIST, clarifying the necessary privileges for these operations. It also adds a helpful cross-reference to the CLUSTER_PROCESSLIST table. My review focuses on aligning the new content with the documentation style guide. I've suggested minor wording changes to use the second person ("you") for a more direct address to the user and to improve conciseness, as recommended by the style guide.

[qiancai]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: qiancai

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