53 lines
2.0 KiB
Ruby
53 lines
2.0 KiB
Ruby
#
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# Copyright (C) 2017 - present Instructure, Inc.
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#
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# This file is part of Canvas.
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#
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# Canvas is free software: you can redistribute it and/or modify it under
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# the terms of the GNU Affero General Public License as published by the Free
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# Software Foundation, version 3 of the License.
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#
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# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
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# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Affero General Public License along
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# with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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class UpdateCollationKeyIndexes < ActiveRecord::Migration[5.0]
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tag :predeploy
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disable_ddl_transaction!
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def change
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collkey = connection.extension_installed?(:pg_collkey)
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return unless collkey
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reversible do |dir|
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dir.up {
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# Remove any old indexes left over from previous migrations
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if connection.index_name_exists?(:users, :index_users_on_sortable_name_old)
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remove_index :users, name: :index_users_on_sortable_name_old
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end
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if connection.index_name_exists?(:attachments, :index_attachments_on_folder_id_and_file_state_and_display_name1)
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remove_index :attachments, name: :index_attachments_on_folder_id_and_file_state_and_display_name1
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end
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}
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end
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rename_index :users, :index_users_on_sortable_name, :index_users_on_sortable_name_old
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rename_index :attachments, :index_attachments_on_folder_id_and_file_state_and_display_name,
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:index_attachments_on_folder_id_and_file_state_and_display_name1
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add_index :users, "#{collkey}.collkey(sortable_name, 'root', false, 3, true)",
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algorithm: :concurrently, name: :index_users_on_sortable_name
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add_index :attachments, "folder_id, file_state, #{collkey}.collkey(display_name, 'root', false, 3, true)",
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algorithm: :concurrently, name: :index_attachments_on_folder_id_and_file_state_and_display_name,
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where: 'folder_id IS NOT NULL'
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end
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end
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