problem

Hello, help me please,
I don't know how, but i got 2 postgres users.
How can I delete the first one ????
thx alot for your answers.

///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


select passwd,ctid,xmin,xmax,cmin,cmax from pg_shadow where usesysid =1;
              passwd                | ctid  | xmin |   xmax   |   cmin
| cmax
-------------------------------------+-------+------+----------+----------+-----
                      
-
                                    | (0,1) |    1 | 16754522 | 16754522
|    0
md510db8c04d26d32185270721fcf32155 | (0,2) |    2 |        0 |        0
|    0
(2 rows)

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////


select * from pg_shadow where usesysid=1;
usename  | usesysid | usecreatedb | usesuper | usecatupd |
passwd
| valuntil | useconfig
----------+----------+-------------+----------+-----------+---------------------
                      
----------------+----------+-----------
postgres |        1 | t           | t        | t
|
|          |
postgres |        1 | t           | t        | t         |
md510db8c04d231142d5
270721fcf740ed5 | infinity |
(2 rows)

////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////



Tom Lane пишет:
"spol@mail.ru" <spol@mail.ru> writes:

> I have two "postgres" user. How to delete the first one ???
>

Let's see the system columns (ctid,xmin,xmax,cmin,cmax) for those
two rows?

            regards, tom lane