gafiatulin commented on code in PR #25908:
URL: https://github.com/apache/datafusion/pull/25908#discussion_r4228806676
##########
datafusion/physical-plan/src/filter.rs:
##########
@@ -1118,6 +1118,13 @@ fn unique_match_limit(
predicate: &Arc<dyn PhysicalExpr>,
statistics: &Statistics,
) -> Option<usize> {
+ if !statistics
+ .column_statistics
+ .iter()
+ .any(|column| holds_each_value_once(column, &statistics.num_rows))
+ {
+ return None;
+ }
Review Comment:
Yeah, I guess specific column check can happen inside `restricted_column`
prior to building the set. I'll make the change
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