SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Asterisk
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      Subquery (children 1)
       SelectWithUnionQuery (children 1)
        ExpressionList (children 1)
         SelectQuery (children 3)
          ExpressionList (children 2)
           Identifier x
           Function sum (children 1)
            ExpressionList (children 1)
             Identifier y
          TablesInSelectQuery (children 1)
           TablesInSelectQueryElement (children 1)
            TableExpression (children 1)
             Function remote (children 1)
              ExpressionList (children 3)
               Literal \'127.0.0.{1,2}\'
               Function currentDatabase (children 1)
                ExpressionList
               Identifier tab
          ExpressionList (children 1)
           Identifier x
   Function equals (children 1)
    ExpressionList (children 2)
     Identifier x
     Literal UInt64_42
