InsertQuery   (children 2)
 Identifier users
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 1)
    ExpressionList (children 2)
     Literal UInt64_11
     Function concat (children 1)
      ExpressionList (children 2)
       Literal \'user_\'
       Function toString (children 1)
        ExpressionList (children 1)
         Literal UInt64_11
