Fixed memory leak in PgSQL_Protocol

lib/PgSQL_Protocol.cpp

@@ -767,6 +767,7 @@ EXECUTION_STATE PgSQL_Protocol::process_handshake_response_packet(unsigned char*
 #endif // debug
 		(*myds)->sess->default_hostgroup = default_hostgroup;
 		//(*myds)->sess->default_schema = default_schema; // just the pointer is passed
+		if ((*myds)->sess->user_attributes) free((*myds)->sess->user_attributes);
 		(*myds)->sess->user_attributes = attributes; // just the pointer is passed
 		//(*myds)->sess->schema_locked = schema_locked;
 		(*myds)->sess->transaction_persistent = transaction_persistent;
@@ -794,6 +795,8 @@ EXECUTION_STATE PgSQL_Protocol::process_handshake_response_packet(unsigned char*
 				password = l_strdup(mysql_thread___monitor_password);
 			}
 		}
+
+		if (attributes) free(attributes);
 	}
 
 	if (password) {