diff options
Diffstat (limited to 'sql/catalyst/src')
| -rw-r--r-- | sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala b/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala index ecf4285c46..aceeb8aadc 100644 --- a/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/LogicalPlan.scala +++ b/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) { throw new UnsupportedOperationException(s"LeafNode $nodeName must implement statistics.") } Statistics(sizeInBytes = children.map(_.statistics.sizeInBytes).product) |