PhysicalAggregation — Scala Extractor for Destructuring Aggregate Logical Operators

PhysicalAggregation is a Scala extractor to destructure an Aggregate logical operator into a four-element tuple with the following elements:

  1. Grouping named expressions

  2. AggregateExpressions

  3. Result named expressions

  4. Child logical operator

ReturnType
(Seq[NamedExpression], Seq[AggregateExpression], Seq[NamedExpression], LogicalPlan)
Tip
 See the document about Scala extractor objects.

Destructuring Aggregate Logical Operator — unapply Method

type ReturnType =
  (Seq[NamedExpression], Seq[AggregateExpression], Seq[NamedExpression], LogicalPlan)

unapply(a: Any): Option[ReturnType]

unapply destructures the input a Aggregate logical operator into a four-element ReturnType.

Note

unapply is used when…​FIXME

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