[SPARK-33309] Replace origin GROUPING SETS with new expression

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 3.1.0
• Component/s: SQL
• Assignee: Unassigned
• Reporter: angerszhu
• Created: 31/Oct/20 03:47
• Updated: 25/Apr/21 08:49
• Resolved: 12/Apr/21 08:33

Description

Replace current GroupingSets just using expression

case class GroupingSets(
    selectedGroupByExprs: Seq[Seq[Expression]],
    groupByExprs: Seq[Expression],
    child: LogicalPlan,
    aggregations: Seq[NamedExpression]) extends UnaryNode {

  override def output: Seq[Attribute] = aggregations.map(_.toAttribute)

  // Needs to be unresolved before its translated to Aggregate + Expand because output attributes
  // will change in analysis.
  override lazy val resolved: Boolean = false
}