milastdbx commented on code in PR #44537:
URL: https://github.com/apache/spark/pull/44537#discussion_r1441518135
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sql/core/src/main/scala/org/apache/spark/sql/execution/dynamicpruning/PartitionPruning.scala:
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@@ -207,14 +208,20 @@ object PartitionPruning extends Rule[LogicalPlan] with
PredicateHelper with Join
}
}
+ private def hasNoCollations(plan: LogicalPlan): Boolean = {
+ // TODO: Should be more selective here.
+ // Don't fully understand this code path.
+ !plan.expressions.exists(e => e.dataType.isInstanceOf[CollatedStringType])
+ }
+
/**
* To be able to prune partitions on a join key, the filtering side needs to
* meet the following requirements:
* (1) it can not be a stream
* (2) it needs to contain a selective predicate used for filtering
*/
private def hasPartitionPruningFilter(plan: LogicalPlan): Boolean = {
- !plan.isStreaming && hasSelectivePredicate(plan)
+ !plan.isStreaming && hasSelectivePredicate(plan) && hasNoCollations(plan)
Review Comment:
Was your intention to disable pruning altogether ?
This pruning is just for dynamic pruning.
There is also pruning happening during file listing in both static analysis
and scan phy nodes
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