SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 6)
   ExpressionList (children 3)
    Identifier k
    Function divide (alias ratio) (children 1)
     ExpressionList (children 2)
      Identifier in
      Identifier out
    Function count (alias count_rows_w) (children 1)
     ExpressionList (children 1)
      Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier error_win_func
   ExpressionList (children 1)
    WindowListElement
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier ALL
   Literal UInt64_1
   ExpressionList (children 1)
    Identifier k
