Joe Conway <mail(at)joeconway(dot)com> writes:
>> what to do?
> Start by giving us more information.
> What version of Postgres? What platform (Linux, etc)?
> What does the relevant portion of your database schema look like?
> What repeatable series of actions causes the problem?
> Is there a core file and have you looked at it in a debugger?
Also, make sure you are logging the postmaster log output (send its
stderr to a file, not to /dev/null), and look to see what shows up
in the postmaster log when this happens.
regards, tom lane