gabotechs commented on code in PR #26593:
URL: https://github.com/apache/datafusion/pull/26593#discussion_r4483795953


##########
datafusion/common/src/partitioning.rs:
##########
@@ -89,10 +86,10 @@ pub fn validate_range_split_points(
             split_points[0].values(),
             split_points[1].values(),
             sort_options,
-        )? != Ordering::Less
+        )? == Ordering::Greater

Review Comment:
   🤔 I'd also double check how easy it'd be to remove the invariant in DFD 
about needing the same partition count in all task-specialized plans in a stage.
   
   If we were able to remove that invariant, will it avoid introducing some 
sense of padding in this project?



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