alamb commented on code in PR #16606:
URL: https://github.com/apache/datafusion/pull/16606#discussion_r2173688327
##########
datafusion/sql/src/expr/function.rs:
##########
@@ -227,6 +227,10 @@ impl<S: ContextProvider> SqlToRel<'_, S> {
OVER is for window functions, whereas WITHIN GROUP is for
ordered set aggregate functions");
}
+ if !order_by.is_empty() && !within_group.is_empty() {
+ return plan_err!("ORDER BY and WITHIN GROUP clauses cannot be used
together in the same aggregate function. ");
Review Comment:
Sorry -- I missed this suggestion before merging. @watchingthewheelsgo any
chance you are willing to make a small follow on PR?
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