Github user CodingCat commented on a diff in the pull request:
https://github.com/apache/spark/pull/19864#discussion_r154500900
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/columnar/InMemoryRelation.scala
---
@@ -71,9 +73,17 @@ case class InMemoryRelation(
override def computeStats(): Statistics = {
if (batchStats.value == 0L) {
- // Underlying columnar RDD hasn't been materialized, no useful
statistics information
- // available, return the default statistics.
- Statistics(sizeInBytes = child.sqlContext.conf.defaultSizeInBytes)
+ children.filter(_.isInstanceOf[LogicalRelation]) match {
+ case Seq(c @ LogicalRelation(_, _, _, _), _) if c.conf.cboEnabled
=>
--- End diff --
thanks, @viirya , yes, you're right! I misread the generated plan, working
on it
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