SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 2)
    Function nullIf (alias x) (children 1)
     ExpressionList (children 2)
      Identifier number
      Function if (children 1)
       ExpressionList (children 3)
        Function equals (children 1)
         ExpressionList (children 2)
          Function modulo (children 1)
           ExpressionList (children 2)
            Identifier number
            Literal UInt64_3
          Literal UInt64_0
        Identifier number
        Literal UInt64_0
    Identifier number (alias y)
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 1)
           Asterisk
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             TableIdentifier system.numbers
          Literal UInt64_10
   ExpressionList (children 2)
    OrderByElement (children 1)
     Identifier x
    OrderByElement (children 1)
     Identifier y
