Re: Perl/DBI vs Native

On Tue, Jul 22, 2008 at 9:48 AM, Greg Sabino Mullane  wrote:
>> In case someone is wondering, the way to force DBI to use unix
>> sockets is by not specifying a host and port in the connect call.
>
> Actually, the host defaults to the local socket. Using the port
> may still be needed: if you leave it out, it simply uses the default
> value (5432) if left out. Thus, for most purposes, just leaving
> the host out is enough to cause a socket connection on the default
> port.

For the further illumination of the historical record, the best
practice here is probably to use the pg_service.conf file, which may
or may not live in /etc depending on your operating system.  Then you
can connect in DBI using dbi:Pg:service=whatever, and change the
definition of "whatever" in pg_service.conf.  This has the same
semantics as PGSERVICE=whatever when using psql.  It's a good idea to
keep these connection details out of your program code.

-jwb