SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 1)
    Identifier fact_3_id
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier grouping_sets
   ExpressionList (children 4)
    ExpressionList (children 1)
     Literal \'wo\\0ldworldwo\\0ldworldwo\\0ldworldwo\\0ldworldwo\\0ldworldwo\\0ldworldwo\\0ldworldwo\\0ldworld\'
    ExpressionList (children 1)
     Literal NULL
    ExpressionList (children 1)
     Identifier fact_4_id
    ExpressionList (children 2)
     Identifier fact_3_id
     Identifier fact_4_id
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier fact_3_id