adriangb commented on code in PR #15301:
URL: https://github.com/apache/datafusion/pull/15301#discussion_r2023197647
##########
datafusion/physical-plan/src/sorts/sort.rs:
##########
@@ -1224,6 +1245,28 @@ impl ExecutionPlan for SortExec {
.with_preserve_partitioning(self.preserve_partitioning()),
)))
}
+
+ // Pass though filter pushdown.
+ // This often happens in partitioned plans with a TopK because we end up
with 1 TopK per partition + a final TopK at the end.
+ // Implementing this pass-through allows global/top/final TopK to push
down filters to the partitions.
+ fn push_down_filter(
+ &self,
+ expr: Arc<dyn PhysicalExpr>,
+ ) -> Result<Option<Arc<dyn ExecutionPlan>>> {
Review Comment:
https://github.com/apache/datafusion/issues/15534
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