Dandandan commented on code in PR #8126:
URL: https://github.com/apache/arrow-datafusion/pull/8126#discussion_r1389867777
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datafusion/physical-plan/src/filter.rs:
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@@ -194,11 +194,13 @@ impl ExecutionPlan for FilterExec {
fn statistics(&self) -> Result<Statistics> {
let predicate = self.predicate();
+ let input_stats = self.input.statistics()?;
let schema = self.schema();
if !check_support(predicate, &schema) {
- return Ok(Statistics::new_unknown(&schema));
+ // assume worst case, that the filter is highly selective and
Review Comment:
```suggestion
// assume worst case, that the filter is highly unselective and
```
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