Github user srowen commented on a diff in the pull request:
https://github.com/apache/spark/pull/11802#discussion_r56636690
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala
---
@@ -79,13 +79,13 @@ abstract class LogicalPlan extends
QueryPlan[LogicalPlan] with Logging {
/**
* Computes [[Statistics]] for this plan. The default implementation
assumes the output
- * cardinality is the product of of all child plan's cardinality, i.e.
applies in the case
+ * cardinality is the product of all child plan's cardinality, i.e.
applies in the case
* of cartesian joins.
*
* [[LeafNode]]s must override this.
*/
def statistics: Statistics = {
- if (children.size == 0) {
+ if (children.isEmpty) {
--- End diff --
(Although it's not a typo I am OK with this kind of change if touching the
code anyway)
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