my($dbh) = DBI->connect('dbi:Pg:dbname=dbhere', 'userhere', 'passhere', {
	AutoCommit => 1,
	RaiseError => 1,
}) || die("DBI->connect() failed: $DBI::errstr");

tie(%session, 'Apache::Session::Postgres', undef(), {
	DataSource => 'dbi:Pg:dbname=dbhere',
	UserName => 'userhere',
	Password => 'passhere',
	Commit => 1,
});