-- Licensed to the Apache Software Foundation (ASF) under one or more
-- contributor license agreements.  See the NOTICE file distributed with
-- this work for additional information regarding copyright ownership.
-- The ASF licenses this file to You under the Apache License, Version 2.0
-- (the "License"); you may not use this file except in compliance with
-- the License.  You may obtain a copy of the License at
--
--     http://www.apache.org/licenses/LICENSE-2.0
--
-- Unless required by applicable law or agreed to in writing, software
-- distributed under the License is distributed on an "AS IS" BASIS,
-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-- See the License for the specific language governing permissions and
-- limitations under the License.
DECLARE
        v_count number:=0;
BEGIN   
        select count(*) into v_count from user_tab_cols where table_name='X_POLICY_EXPORT_AUDIT' and column_name='CLUSTER_NAME';
        if (v_count = 0) then 
                execute immediate 'ALTER TABLE x_policy_export_audit ADD cluster_name varchar(255) DEFAULT NULL NULL';
        end if; 
        commit; 
END;/