text: -- Copyright [1999-2015] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
  -- Copyright [2016-2022] 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_54_55_g.sql
  #
  # title: Change analysis_description.display_label to "NOT NULL".
  #
  # description:
  # Display labels are generally supposed to be non-NULL and non-empty.
  # The display_label field in the analysis_description table allows for
  # NULLs.  This patch fixes this.
  
  ALTER TABLE analysis_description
    MODIFY COLUMN display_label VARCHAR(255) NOT NULL;
  
  # patch identifier
  INSERT INTO meta (species_id, meta_key, meta_value)
  VALUES (NULL, 'patch',
    'patch_54_55_g.sql|analysis_description.display_label_NOT_NULL');
  