SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 2)
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Function first_value_respect_nullsState (children 1)
       ExpressionList (children 1)
        Identifier dummy
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Function last_value_respect_nullsState (children 1)
       ExpressionList (children 1)
        Identifier dummy
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.one
