planner: set windowClause only in WindowFuncExpr #(19956) #12384
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What problem does this PR solve?
Fix #11943
What is changed and how it works?
Presently, TiDB sets windowClause even if the expr is a binaryExpr. So
set windowClause only in WindowFuncExpr to fix it.
Check List
Tests
Code changes
Side effects
Related changes
Release note