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

On Fri, Nov 27, 2015 at 09:38:54AM +0000, Benedikt Grundmann wrote:
> That worked (I also swapped the password columns so that I don't have to change
> pgpass entries).  But I then ran into a different problem a little later on.  I
> thought I quickly mention it here in case somebody can point me into the right
> direction:
>
...
> Restoring database schemas in the new cluster
>
> *failure*
> Consult the last few lines of "pg_upgrade_dump_16416.log" for
> the probable cause of the failure.
> child worker exited abnormally: Invalid argument
>
> *failure*
> Consult the last few lines of "pg_upgrade_server.log" for
> the probable cause of the failure.
>
> [as-proddb@nyc-dbc-001 upgrade-logs]$ tail pg_upgrade_dump_16416.log
> pg_restore: creating CHECK CONSTRAINT seqno_not_null
> pg_restore: creating CHECK CONSTRAINT seqno_not_null
> pg_restore: [archiver (db)] Error while PROCESSING TOC:
> pg_restore: [archiver (db)] Error from TOC entry 8359; 2606 416548282 CHECK
> CONSTRAINT seqno_not_null postgres_prod
> pg_restore: [archiver (db)] could not execute query: ERROR:  constraint
> "seqno_not_null" for relation "js_activity_2011" already exists
>     Command was: ALTER TABLE "js_activity_2011"
>     ADD CONSTRAINT "seqno_not_null" CHECK (("seqno" IS NOT NULL)) NOT VALID;

I have no idea, but this is a pg_dump bug or inconsistent system tables,
rather than a pg_upgrade-specific bug.