Github user hvanhovell commented on a diff in the pull request: https://github.com/apache/spark/pull/14539#discussion_r74100376 --- Diff: sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/logical/basicLogicalOperators.scala --- @@ -769,3 +769,41 @@ case object OneRowRelation extends LeafNode { */ override lazy val statistics: Statistics = Statistics(sizeInBytes = 1) } + +/** + * An inline table that holds a number of foldable expressions, which can be materialized into + * rows. This is semantically the same as a Union of one row relations. + */ +case class InlineTable(rows: Seq[Seq[NamedExpression]]) extends LeafNode { --- End diff -- Yeah, I had these checks. The thing is that none of the LogicalPlans have such logic, it has all been centralized in CheckAnalysis. So I added it there. It might not be a bad plan to move this functionality into the separate plans on the longer run.
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