-- Copyright [1999-2015] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
-- Copyright [2016-2019] 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,
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-- See the License for the specific language governing permissions and
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# patch_58_59_d.sql
#
# Title:
#   Extend the object_type_idx index of the object_xref table.
#
# Description:
#   Add the 'analysis_id' to the end of the object_type_idx index in the
#   object_xref table so that we may allow for object_xref entries that
#   only differ in analysis_id.

# Modify the object_xref table.
ALTER TABLE object_xref
  DROP INDEX object_type_idx,
  ADD UNIQUE INDEX
    object_type_idx (ensembl_object_type, ensembl_id, xref_id, analysis_id);

ANALYZE TABLE object_xref;

# Insert patch identifier.
INSERT INTO meta (species_id, meta_key, meta_value)
  VALUES (NULL, 'patch',
    'patch_58_59_d.sql|object_xref_extend_index');
