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.
  
  
  # Updating the schema version
  
  DELETE FROM meta WHERE meta_key="schema_version";
  INSERT INTO meta (meta_key,meta_value) VALUES ("schema_version",42);
  
  # Add a UNIQUE constraint to the analysis_description.analysis_id
  
  ALTER TABLE analysis_description DROP INDEX analysis_idx;
  ALTER TABLE analysis_description ADD UNIQUE analysis_idx (analysis_id);
  
  # description: Add web_data column to analysis_description.
  
  ALTER TABLE analysis_description ADD COLUMN web_data TEXT;
  
  # Add a PRIMARY KEY to the ncbi_taxa_node.taxon_id
  
  ALTER TABLE ncbi_taxa_node DROP INDEX taxon_id;
  ALTER TABLE ncbi_taxa_node ADD PRIMARY KEY (taxon_id);
  