"Bartek GRUbY" <grubby@epf.pl> writes:
> i have similar problem - can't make dumps of any db with the same error message (and all applications using this pg
serverworks fine) . But in my case, i think, only user 'postgres' is duplicated:
> template1=> select * from pg_catalog.pg_shadow where usename = 'postgres';
> usename | usesysid | usecreatedb | usesuper | usecatupd | passwd | valuntil |
useconfig
>
----------+----------+-------------+----------+-----------+-------------------------------------+----------+-----------
> postgres | 1 | t | t | t | | |
> postgres | 1 | t | t | t | md5c084502ed11efa9d3d96d29717a5e555 | |
> (2 rows)
What PG version are you using exactly? Could we see the system columns
for those rows, ie,
select ctid,xmin,xmax,cmin,xmax,* from pg_shadow where usename = 'postgres';
regards, tom lane
