66 lines
3.2 KiB
Ruby
66 lines
3.2 KiB
Ruby
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#
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# Copyright (C) 2012 - 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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class ReplaceOtherGistIndexesWithGin < ActiveRecord::Migration[5.1]
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tag :postdeploy
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disable_ddl_transaction!
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def up
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if (schema = connection.extension_installed?(:pg_trgm))
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add_index :users, "LOWER(short_name) #{schema}.gin_trgm_ops", name: "index_gin_trgm_users_short_name", using: :gin, algorithm: :concurrently
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add_index :users, "LOWER(name) #{schema}.gin_trgm_ops", name: "index_gin_trgm_users_name_active_only",
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using: :gin, algorithm: :concurrently, where: "workflow_state IN ('registered', 'pre_registered')"
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add_index :courses, "(
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coalesce(lower(name), '') || ' ' ||
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coalesce(lower(sis_source_id), '') || ' ' ||
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coalesce(lower(course_code), '')
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) #{schema}.gin_trgm_ops",
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name: "index_gin_trgm_courses_composite_search",
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using: :gin,
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algorithm: :concurrently
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add_index :discussion_topics, "LOWER(title) #{schema}.gin_trgm_ops", name: "index_gin_trgm_discussion_topics_title", using: :gin, algorithm: :concurrently
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remove_index :users, name: "index_trgm_users_short_name"
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remove_index :users, name: "index_trgm_users_name_active_only"
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remove_index :courses, name: "index_trgm_courses_composite_search"
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remove_index :discussion_topics, name: "index_trgm_discussion_topics_title"
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end
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end
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def down
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if (schema = connection.extension_installed?(:pg_trgm))
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add_index :users, "LOWER(short_name) #{schema}.gist_trgm_ops", name: "index_trgm_users_short_name", using: :gist, algorithm: :concurrently
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add_index :users, "LOWER(name) #{schema}.gist_trgm_ops", name: "index_trgm_users_name_active_only",
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using: :gist, algorithm: :concurrently, where: "workflow_state IN ('registered', 'pre_registered')"
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add_index :courses, "(
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coalesce(lower(name), '') || ' ' ||
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coalesce(lower(sis_source_id), '') || ' ' ||
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coalesce(lower(course_code), '')
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) #{schema}.gist_trgm_ops",
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name: "index_trgm_courses_composite_search",
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using: :gist,
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algorithm: :concurrently
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add_index :discussion_topics, "LOWER(title) #{schema}.gist_trgm_ops", name: "index_trgm_discussion_topics_title", using: :gist, algorithm: :concurrently
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remove_index :users, name: "index_gin_trgm_users_short_name"
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remove_index :users, name: "index_gin_trgm_users_name_active_only"
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remove_index :courses, name: "index_gin_trgm_courses_composite_search"
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remove_index :discussion_topics, name: "index_gin_trgm_discussion_topics_title"
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end
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end
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end
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