DBI Proxy Ping



I'm not sure if there is a reason why this hasn't been done already but
we've been having problems integrating Apache::DBI caching and
DBD::Proxy to DBD::Pg without the ping functionality.

# diff DBI/ProxyServer.pm.orig DBI/ProxyServer.pm.new
90a91
> 'ping' => 1,

# diff DBD/Proxy.pm.orig DBD/Proxy.pm.new
297a298,306
> sub ping () {
> my ($dbh) = @_;
> my $rdbh = $dbh->{'proxy_dbh'};
> my $res = eval { $rdbh->ping(); };
>
> return $res;
> }
>
>
.



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