[AQUMV] Avoid misbehaviors that are not supported currently.

[avamingli]

Correct some limitations we don't support now.
For both origin query and view query, belows are not supported: DISTINCT, SCATTER BY, CTE,
FOR UPDATE, FOR NO KEY UPDATE, FOR SHARE, FOR KEY SHARE, UNION/INTERSECT/EXCEPT.

Authored-by: Zhang Mingli avamingli@gmail.com

fix #ISSUE_Number

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[avamingli]

Pushed, thanks for review.