gabotechs commented on code in PR #23239:
URL: https://github.com/apache/datafusion/pull/23239#discussion_r3497069351
##########
datafusion/core/tests/physical_optimizer/enforce_distribution.rs:
##########
@@ -700,6 +748,201 @@ impl TestConfig {
}
}
+#[test]
+fn range_aggregate_keeps_range_partitioning_at_subset_threshold() ->
Result<()> {
+ let input = parquet_exec_with_output_partitioning(range_partitioning(
+ "a",
+ [10, 20, 30],
+ SortOptions::default(),
+ )?);
+ let aggregate =
+ aggregate_exec_with_alias(input, vec![("a".to_string(),
"a".to_string())]);
+
+ let plan = TestConfig::default()
+ .with_query_execution_partitions(4)
+ .to_plan(aggregate, &DISTRIB_DISTRIB_SORT);
+
+ assert_plan!(
+ plan,
+ @r"
+ AggregateExec: mode=FinalPartitioned, gby=[a@0 as a], aggr=[]
+ AggregateExec: mode=Partial, gby=[a@0 as a], aggr=[]
+ DataSourceExec: file_groups={4 groups: [[p0], [p1], [p2], [p3]]},
projection=[a, b, c, d, e], output_partitioning=Range([a@0 ASC], [(10), (20),
(30)], 4), file_type=parquet
Review Comment:
I don't have a strong opinion whether porting this to SLT tests or also
leaving them here. If there are things that are covered here but not in SLT,
it's probably worth also covering them in SLT.
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