text: -- Copyright [1999-2015] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
  -- Copyright [2016-2019] 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_f.sql
  #
  # title: Pair_dna_align_feature removal
  #
  # description:
  # Removal of the pair_dna_align_feature_id column in the dna_align_feature table, as it is not used any more
  
  ALTER TABLE dna_align_feature DROP INDEX pair_idx;
  ALTER TABLE dna_align_feature DROP COLUMN pair_dna_align_feature_id ;
  
  # patch identifier
  INSERT INTO meta (species_id, meta_key, meta_value) VALUES (NULL, 'patch', 'patch_73_74_f.sql|remove_pair_dna_align');
  
   
  