Github user hvanhovell commented on a diff in the pull request:
https://github.com/apache/spark/pull/15363#discussion_r105023151
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/planning/patterns.scala
---
@@ -257,3 +258,28 @@ object PhysicalAggregation {
case _ => None
}
}
+
+/**
+ * A pattern that matches a base table access and collects the
+ * the corresponding leaf node and the applied predicates.
+ * A base table access represents a LeafNode, or a Project or Filter
operators
+ * above a LeafNode.
+ */
+object BaseTableAccess extends PredicateHelper {
+ def unapply(plan: LogicalPlan): Option[(LogicalPlan, Seq[Expression])] =
plan match {
--- End diff --
Is this the same a `PhysicalOperation`? Or, better question, what is the
difference?
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