haohuaijin commented on code in PR #21527:
URL: https://github.com/apache/datafusion/pull/21527#discussion_r3077968788
##########
datafusion/core/tests/physical_optimizer/filter_pushdown.rs:
##########
@@ -5146,3 +5150,350 @@ async fn
test_hashjoin_dynamic_filter_pushdown_left_semi_join() {
"
);
}
+
+// ==== Filter pushdown through SortExec tests ====
+
+/// FilterExec above a plain SortExec (no fetch) should be pushed below it.
+/// The scan supports pushdown, so the filter lands in the DataSourceExec.
+#[test]
Review Comment:
due to
- https://github.com/apache/datafusion/issues/15886
the subquery's order by is removed by our sql parser layer, so i can't
reproduce use sql
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