hubert depesz lubaczewski <depesz(at)depesz(dot)com> writes:
> I didn't have a chance to do it. Can try if there is a way to get trace
> *without* making core (sorry, my c/gdb knowledge is very, very limited).
Sure, you just attach to the process:
$ gdb /path/to/postgres PID-of-process
gdb> bt
gdb> quit
This is usually preferable to forcing a core dump.
regards, tom lane