In article <12487(dot)1206565567(at)sss(dot)pgh(dot)pa(dot)us>,
Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> writes:
>> I note that we can continue to have the current executables stashed in
>> PREFIX/share/libexec and let the "pg" executable exec them.
> Not share/ surely, since these are executables, but yeah.
> This brings me to the idea that "pg" is a very small stupid program
> that just tries to match its first argument against a filename in
> PREFIX/libexec/postgresql. If it finds a match it execs that program
> with the remaining args, else it fails.
Add an optional command-line argument for specifying an alternative
PREFIX, and the problem of multiple PostgreSQL versions on one host is
solved as well.