kumarUjjawal commented on code in PR #19468:
URL: https://github.com/apache/datafusion/pull/19468#discussion_r2645964752
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datafusion/physical-plan/src/joins/nested_loop_join.rs:
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@@ -550,17 +550,22 @@ impl ExecutionPlan for NestedLoopJoinExec {
}
fn partition_statistics(&self, partition: Option<usize>) ->
Result<Statistics> {
- if partition.is_some() {
- return Ok(Statistics::new_unknown(&self.schema()));
- }
let join_columns = Vec::new();
- estimate_join_statistics(
- self.left.partition_statistics(None)?,
- self.right.partition_statistics(None)?,
+ let left_stats = self.left.partition_statistics(None)?;
+ let right_stats = match partition {
+ Some(partition) =>
self.right.partition_statistics(Some(partition))?,
+ None => self.right.partition_statistics(None)?,
+ };
+
+ let stats = estimate_join_statistics(
Review Comment:
Added comments
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