Man pages matching name x2go::server::db::postgresql in section 3pm:

X2Go::Server::DB::PostgreSQL.3pm.en	debian 10 / libx2go-server-db-perl
X2Go::Server::DB::PostgreSQL.3pm.en	debian 11 / libx2go-server-db-perl
X2Go::Server::DB::PostgreSQL.3pm.en	debian 12 / libx2go-server-db-perl