Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/21305#discussion_r206746383
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala
---
@@ -352,6 +351,36 @@ case class Join(
}
}
+/**
+ * Append data to an existing table.
+ */
+case class AppendData(
+ table: NamedRelation,
+ query: LogicalPlan,
+ isByName: Boolean) extends LogicalPlan {
+ override def children: Seq[LogicalPlan] = Seq(query)
--- End diff --
why is `table` not a child? Then we can't transform the table relation.
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