text: -- Copyright [1999-2015] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
  -- Copyright [2016-2020] 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.
  
  # patch_73_74_d.sql
  #
  # Title: Drops the threshold_on_ds column in homology
  #
  # Description:
  #   Drops the threshold_on_ds column in the homology
  #   table. Stores the information in mlss_tag instead
  
  SET session sql_mode='TRADITIONAL';
  
  INSERT INTO method_link_species_set_tag
    SELECT method_link_species_set_id, 'threshold_on_ds', threshold_on_ds
    FROM homology
    WHERE threshold_on_ds IS NOT NULL
    GROUP BY method_link_species_set_id;
  
  ALTER TABLE homology
    DROP COLUMN threshold_on_ds;
  
  # Patch identifier
  INSERT INTO meta (species_id, meta_key, meta_value)
    VALUES (NULL, 'patch', 'patch_73_74_d.sql|threshold_on_ds');
  