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.
  
  /**
  @header patch_69_70_b.sql - regulatory_feature.bound_start/end_length
  @desc   Change the bound_seq_regiobn_start/end fields to lengths
  */
  
  ALTER TABLE regulatory_feature ADD `bound_start_length` mediumint(3) unsigned NOT NULL;
  ALTER TABLE regulatory_feature ADD `bound_end_length` mediumint(3) unsigned NOT NULL;
  
  update regulatory_feature set bound_start_length=(seq_region_start - bound_seq_region_start);
  update regulatory_feature set bound_end_length=(bound_seq_region_end - seq_region_end);
  
  ALTER TABLE regulatory_feature DROP bound_seq_region_start;
  ALTER TABLE regulatory_feature DROP bound_seq_region_end;
  
  analyze table regulatory_feature;
  optimize table regulatory_feature;
  
  
  # patch identifier
  INSERT INTO meta (species_id, meta_key, meta_value) VALUES (NULL, 'patch', 'patch_69_70_b.sql|regulatory_feature.bound_start/end_length');
  
  