text: -- Copyright [1999-2015] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
  -- Copyright [2016-2017] 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
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  -- Unless required by applicable law or agreed to in writing, software
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  ## This patch changes all fields that hold alleles to be able to hold longer strings (up to 25000 characters)
  
  # ancestral allele in variation
  ALTER TABLE variation CHANGE ancestral_allele ancestral_allele varchar(25000);
  
  # allele_string in variation_feature - this is necessarily longer as it contains more than one allele
  ALTER TABLE variation_feature CHANGE allele_string allele_string varchar(50000);
  
  # allele_1 and allele_2 in population_genotype
  ALTER TABLE population_genotype CHANGE allele_1 allele_1 varchar(25000);
  ALTER TABLE population_genotype CHANGE allele_2 allele_2 varchar(25000);
  
  # allele in allele
  ALTER TABLE allele CHANGE allele allele varchar(25000);
  
  # allele_1 and allele_2 in individual_genotype_multiple_bp
  ALTER TABLE individual_genotype_multiple_bp CHANGE allele_1 allele_1 varchar(25000);
  ALTER TABLE individual_genotype_multiple_bp CHANGE allele_2 allele_2 varchar(25000);
  
  # patch identifier
  INSERT INTO meta (species_id, meta_key, meta_value) VALUES (NULL,'patch', 'patch_61_62_j.sql|change fields that hold alleles to large varchars');
  