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LeafNodes

LeafNode is an extension of the LogicalPlan abstraction for leaf logical operators (with no child nodes).

Implementations

Children

children: Seq[LogicalPlan]

children is an empty collection (to denote being a leaf in an operator tree).

children is part of the TreeNode abstraction.

Statistics

computeStats(): Statistics

computeStats throws an UnsupportedOperationException.

computeStats is used when: