Re: Problems with pg_upgrade after change of unix user running db.

Adrian Klaver <adrian.klaver@aklaver.com> writes:
> On 11/27/2015 08:15 AM, Bruce Momjian wrote:
>> My guess is you are sharing the constraint name "seqno_not_null" with
>> multiple tables.  I think you are going to have to dig into the system
>> tables to see where that is referenced and fix it.

> In the post below the OP shows the tables involved(they where inherited):
> http://www.postgresql.org/message-id/CADbMkNM_y9ewdaWdQ_8DJ1mUC0Z_FGwTyAD2RwCHgExj2jvOHQ@mail.gmail.com

Inherited eh?  Maybe related to 074c5cfbf.

            regards, tom lane