Sure :)
Thanks,
Tejas
On Wed, Oct 12, 2016 at 11:26 AM, Reynold Xin wrote:
> It actually does -- but do it through a really weird way.
>
> UnaryNodeExec actually defines:
>
> trait UnaryExecNode extends SparkPlan {
> def child: SparkPlan
>
> override final def children: Seq[SparkPlan] = chi
It actually does -- but do it through a really weird way.
UnaryNodeExec actually defines:
trait UnaryExecNode extends SparkPlan {
def child: SparkPlan
override final def children: Seq[SparkPlan] = child :: Nil
override def outputPartitioning: Partitioning = child.outputPartitioning
}
I
See
https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/basicPhysicalOperators.scala#L80
Project operator preserves child's sort ordering but for output
partitioning, it does not. I don't see any way projection would alter the
partitioning of the chil
