SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 3)
   ExpressionList (children 1)
    Function if (children 1)
     ExpressionList (children 3)
      Literal UInt64_0
      Function tuple (children 1)
       ExpressionList (children 2)
        Identifier number
        Function toString (children 1)
         ExpressionList (children 1)
          Identifier number
      Function tuple (children 1)
       ExpressionList (children 2)
        Function multiply (children 1)
         ExpressionList (children 2)
          Identifier number
          Literal UInt64_10
        Function concat (children 1)
         ExpressionList (children 2)
          Literal \'! \'
          Function toString (children 1)
           ExpressionList (children 1)
            Identifier number
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.numbers
   Literal UInt64_10