text: -- See the NOTICE file distributed with this work for additional information
  -- regarding copyright ownership.
  --
  -- 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_100_101_e.sql
  #
  # Title: Flag some integer columns as unsigned
  #
  # Description:
  #   Some integer columns cannot have negative values. Here we change their
  #   type to UNSIGNED.
  
  
  ALTER TABLE dnafrag
    MODIFY COLUMN length int unsigned DEFAULT 0 NOT NULL;
  ALTER TABLE peptide_align_feature
    MODIFY COLUMN hstart int unsigned DEFAULT 0 NOT NULL,
    MODIFY COLUMN hend int unsigned DEFAULT 0 NOT NULL;
  
  # Patch identifier
  INSERT INTO meta (species_id, meta_key, meta_value)
    VALUES (NULL, 'patch', 'patch_100_101_e.sql|positive_int');
  
  