/* * call-seq: * conn.protocol_version -> Integer * * The 3.0 protocol will normally be used when communicating with PostgreSQL 7.4 * or later servers; pre-7.4 servers support only protocol 2.0. (Protocol 1.0 is * obsolete and not supported by libpq.) */ static VALUE pgconn_protocol_version(self) VALUE self; { return INT2NUM(PQprotocolVersion(get_pgconn(self))); }