Re: pg_upgrade and wraparound

Adrian Klaver <adrian.klaver@aklaver.com> writes:
> On 06/09/2018 03:46 AM, Alexander Shutyaev wrote:
>> The upgrade operation failed after several hours with the following error:
>> database is not accepting commands to avoid wraparound data loss in 
>> database with OID 0

> Do you know which database has an OID of 0?

Well, none do, so the correct question is what is passing an invalid
database OID to the code that's complaining.  This sure looks like a
bug, though I'm not sure we have enough info to locate it.

            regards, tom lane