Github user chenghao-intel commented on a diff in the pull request:
https://github.com/apache/spark/pull/13585#discussion_r66714358
--- Diff:
sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveStrategies.scala ---
@@ -65,15 +65,20 @@ private[hive] trait HiveStrategies {
// hive table scan operator to be used for partition pruning.
val partitionKeyIds = AttributeSet(relation.partitionKeys)
val (pruningPredicates, otherPredicates) = predicates.partition {
predicate =>
- !predicate.references.isEmpty &&
+ predicate.references.nonEmpty &&
predicate.references.subsetOf(partitionKeyIds)
}
+ val additionalPartPredicates =
+ PhysicalOperation.partitionPrunningFromDisjunction(
+ otherPredicates.foldLeft[Expression](Literal(true))(And(_,
_)), partitionKeyIds)
pruneFilterProject(
projectList,
otherPredicates,
identity[Seq[Expression]],
- HiveTableScanExec(_, relation, pruningPredicates)(sparkSession))
:: Nil
+ HiveTableScanExec(_,
+ relation,
+ pruningPredicates ++ additionalPartPredicates)(sparkSession))
:: Nil
--- End diff --
For `HiveTableScan`, the predicate here just to minimize the partition
scanning, so what we need to do is to put a more specific partition pruning
predicate.
Sorry if there is something confused.
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