How to pass multiple hosts and connection parameter target_session_attrs in connection string. about dbdpg HOT 2 CLOSED

$ perl -MDBD::Pg -e 'use DBI; my $dbh = DBI->connect("dbi:Pg:host=foo,bar,baz","","",{PrintError=>1})'
DBI connect('host=foo,bar,baz','',...) failed: could not translate host name "foo" to address: No address associated with hostname
could not translate host name "bar" to address: No address associated with hostname
could not translate host name "baz" to address: Name or service not known at -e line 1.

$ perl -MDBD::Pg -e 'use DBI; my $dbh = DBI->connect("dbi:Pg:host=foo,bar,baz,localhost","","",{PrintError=>1})'
$