asolimando commented on code in PR #21815:
URL: https://github.com/apache/datafusion/pull/21815#discussion_r3268919292
##########
datafusion/physical-plan/src/execution_plan.rs:
##########
@@ -563,6 +569,30 @@ pub trait ExecutionPlan: Any + Debug + DisplayAs + Send +
Sync {
Ok(Arc::new(Statistics::new_unknown(&self.schema())))
}
+ /// Returns statistics for a specific partition of this `ExecutionPlan`
node.
Review Comment:
Thanks a lot @alamb, I was aiming at something similar with
`StatisticsContext`, having already in mind the integration of
`ExpressionAnalyzer` and `StatisticsRegistry` from
https://github.com/apache/datafusion/pull/21122 and
https://github.com/apache/datafusion/pull/21483, respectively, but your
proposal reads better.
I hope I have captured your suggestion correctly in bc32cf2.
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