text: -- Copyright [1999-2015] Wellcome Trust Sanger Institute and the 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_i,sql
  #
  # Title: Links gene_tree_node_attr to species_tree_node
  #
  # Description:
  #   Adds a new column (species_tree_node_id) in gene_tree_node_attr
  #   It can be a foreign key to species_tree_node.node_id
  #   taxon_id and taxon_name can be removed
  
  SET session sql_mode='TRADITIONAL';
  
  ALTER TABLE gene_tree_node_attr ADD species_tree_node_id INT(10) UNSIGNED;
  
  # This assumes that the species_tree_node table has been populated by a previous patch
  UPDATE gene_tree_node_attr SET species_tree_node_id = 500000000+taxon_id;
  
  ALTER TABLE gene_tree_node_attr DROP COLUMN taxon_id, DROP COLUMN taxon_name;
  
  # Patch identifier
  INSERT INTO meta (species_id, meta_key, meta_value)
    VALUES (NULL, 'patch', 'patch_73_74_i.sql|gene_tree_node_attr.taxon_id');
  