buraksenn commented on code in PR #20963:
URL: https://github.com/apache/datafusion/pull/20963#discussion_r2990756019
##########
datafusion/sql/src/select.rs:
##########
@@ -297,14 +297,23 @@ impl<S: ContextProvider> SqlToRel<'_, S> {
plan
};
- // The outer expressions we will search through for window functions.
- // Window functions may be sourced from the SELECT list or from the
QUALIFY expression.
- let windows_expr_haystack = select_exprs_post_aggr
- .iter()
- .chain(qualify_expr_post_aggr.iter());
+ // The window expressions from SELECT and QUALIFY only, used to
validate that
+ // QUALIFY is used with window functions (ORDER BY window functions
don't count).
+ let qualify_window_func_exprs = find_window_exprs(
Review Comment:
I’ve taken a note and will open a followup PR if suitable
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