alain radix <alain(dot)radix(at)gmail(dot)com> writes:
> Another effect of the patch is that it become possible to start a cluster
> with external_pid_file='' in postgresql.conf
> It would have that same behavior as many other parameters.
I'd still be inclined to do that with something along the lines of
- if (external_pid_file)
+ if (external_pid_file && external_pid_file[0])
rather than changing the default per se.
regards, tom lane