SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 4)
    Function count (alias amount) (children 1)
     ExpressionList
    Identifier a
    Identifier b
    Function grouping (children 1)
     ExpressionList (children 2)
      Identifier a
      Identifier b
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test02315
   ExpressionList (children 2)
    Identifier a
    Identifier b
   ExpressionList (children 1)
    OrderByElement (children 1)
     Function tuple (children 1)
      ExpressionList (children 3)
       Identifier amount
       Identifier a
       Identifier b
   Set