matthewmturner commented on a change in pull request #1063:
URL: https://github.com/apache/arrow-datafusion/pull/1063#discussion_r729016793
##########
File path: datafusion/src/physical_optimizer/aggregate_statistics.rs
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@@ -276,6 +336,35 @@ mod tests {
Ok(())
}
+ /// Checks that the count optimization was applied and we still get the
right result
+ async fn assert_count_with_nulls_optim_success(
+ plan: HashAggregateExec,
+ ) -> Result<()> {
+ let conf = ExecutionConfig::new();
+ let optimized = AggregateStatistics::new().optimize(Arc::new(plan),
&conf)?;
+
+ assert!(optimized.as_any().is::<ProjectionExec>());
Review comment:
Sure - added it.
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