Re: psql: FATAL: database "postgres" does not exist or ERROR: 23505: duplicate key value violates unique constraint "pg_namespace_nspname_index"

> On Jul 16, 2020, at 18:32, Naresh Kumar <tnaresh43@gmail.com> wrote:
>
> Can some one help us on this please.

To be clear, what you almost certainly have here is serious data corruption.  You will need to find a (paid,
commercial)specialist to help you with the recovery.  You are unlikely to get the level of support you need on this
list,for free. 

--
-- Christophe Pettus
   xof@thebuild.com