Github user pwoody commented on a diff in the pull request:
https://github.com/apache/spark/pull/14733#discussion_r75672675
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/columnar/InMemoryTableScanExec.scala
---
@@ -125,12 +129,37 @@ case class InMemoryTableScanExec(
val schema = relation.partitionStatistics.schema
val schemaIndex = schema.zipWithIndex
val relOutput: AttributeSeq = relation.output
- val buffers = relation.cachedColumnBuffers
+ val partitionFilter = newPredicate(
+ partitionFilters.reduceOption(And).getOrElse(Literal(true)),
+ schema)
+
+ val buffers = if (inMemoryPartitionPruningEnabled &&
!relation.batchStats.value.isEmpty) {
+ val validPartitions = relation.batchStats.value.asScala
+ .filter(batchStat => partitionFilter(batchStat._2))
+ .map(_._1)
+ .distinct
+ if (validPartitions.isEmpty) {
+ new EmptyRDD[CachedBatch](sparkContext)
+ } else {
+ new PartitionPruningRDD[CachedBatch](relation.cachedColumnBuffers,
--- End diff --
Cool yeah used this (and removed the EmptyRDD constructor as well). I'd
prefer to keep the logging in the function though.
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