berkaysynnada commented on code in PR #14271:
URL: https://github.com/apache/datafusion/pull/14271#discussion_r1935098072
##########
datafusion/core/tests/physical_optimizer/enforce_sorting.rs:
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@@ -238,6 +241,338 @@ async fn test_remove_unnecessary_sort5() -> Result<()> {
Ok(())
}
+#[test]
+fn test_aggregate_set_monotonic_no_group() -> Result<()> {
+ let schema = create_test_schema4()?;
+
+ let source = memory_exec(&schema);
+
+ let sort_exprs = vec![sort_expr("a", &schema)];
+ let sort = sort_exec(sort_exprs.clone(), source);
+
+ let aggregate = aggregate_exec_set_monotonic(sort, vec![]);
+
+ let sort_exprs = LexOrdering::new(vec![sort_expr("count",
&aggregate.schema())]);
+ let physical_plan: Arc<dyn ExecutionPlan> =
+ Arc::new(SortExec::new(sort_exprs.clone(), aggregate)) as _;
+
+ let expected_input = [
+ "SortExec: expr=[count@0 ASC], preserve_partitioning=[false]",
+ " AggregateExec: mode=Single, gby=[], aggr=[count]",
+ " SortExec: expr=[a@0 ASC], preserve_partitioning=[false]",
+ " MemoryExec: partitions=1, partition_sizes=[0]",
+ ];
+
+ let expected_optimized = [
+ "AggregateExec: mode=Single, gby=[], aggr=[count]",
Review Comment:
I see. I think what we are trying to utilize becomes only meaningful for
window aggregations. I'll finalize the PR after talking with @ozankabak.
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