text: -- Copyright [1999-2015] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
  -- Copyright [2016-2021] EMBL-European Bioinformatics Institute
  -- 
  -- Licensed 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.
  
  # renaming hive_id into worker_id throughout the schema:
  
  ALTER TABLE hive CHANGE COLUMN hive_id worker_id int(10) NOT NULL AUTO_INCREMENT;
  ALTER TABLE analysis_job CHANGE COLUMN hive_id worker_id int(10) NOT NULL;
  ALTER TABLE analysis_job_file CHANGE COLUMN hive_id worker_id int(10) NOT NULL;
  
      # there seems to be no way to rename an index
  ALTER TABLE analysis_job DROP INDEX hive_id;
  ALTER TABLE analysis_job ADD INDEX (worker_id);
  
      # there seems to be no way to rename an index
  ALTER TABLE analysis_job_file DROP INDEX hive_id;
  ALTER TABLE analysis_job_file ADD INDEX (worker_id);
  
  