CR_CONNECTION_ERROR 1104 ext/mysqlnd/mysqlnd.c 		SET_CLIENT_ERROR(*conn->error_info, CR_CONNECTION_ERROR, UNKNOWN_SQLSTATE, conn->error_info->error? conn->error_info->error:"Unknown error");
CR_CONNECTION_ERROR  149 ext/mysqlnd/mysqlnd_net.c 		SET_CLIENT_ERROR(*error_info, CR_CONNECTION_ERROR, UNKNOWN_SQLSTATE, "Unknown errror while connecting");
CR_CONNECTION_ERROR  210 ext/mysqlnd/mysqlnd_net.c 						 CR_CONNECTION_ERROR,
CR_CONNECTION_ERROR  305 ext/mysqlnd/mysqlnd_net.c 		SET_CLIENT_ERROR(*error_info, CR_CONNECTION_ERROR, UNKNOWN_SQLSTATE, "No handler for this scheme");
CR_CONNECTION_ERROR 1386 ext/mysqlnd/mysqlnd_ps.c 			SET_STMT_ERROR(stmt, CR_CONNECTION_ERROR, UNKNOWN_SQLSTATE,