Remove notes index on updated_at
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---
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title: Remove index for notes on updated_at
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merge_request: 23356
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author:
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type: performance
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# frozen_string_literal: true
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# See http://doc.gitlab.com/ce/development/migration_style_guide.html
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# for more information on how to write migrations for GitLab.
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class RemoveNotesIndexOnUpdatedAt < ActiveRecord::Migration[5.0]
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include Gitlab::Database::MigrationHelpers
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DOWNTIME = false
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disable_ddl_transaction!
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def up
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remove_concurrent_index(*index_arguments)
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end
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def down
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add_concurrent_index(*index_arguments)
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end
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private
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def index_arguments
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[
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:notes,
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[:updated_at],
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{
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name: 'index_notes_on_updated_at'
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}
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]
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end
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end
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@ -10,7 +10,7 @@
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#
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# It's strongly recommended that you check this file into your version control system.
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ActiveRecord::Schema.define(version: 20181126150622) do
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ActiveRecord::Schema.define(version: 20181126153547) do
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# These are extensions that must be enabled in order to support this database
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enable_extension "plpgsql"
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@ -1392,7 +1392,6 @@ ActiveRecord::Schema.define(version: 20181126150622) do
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t.index ["noteable_id", "noteable_type"], name: "index_notes_on_noteable_id_and_noteable_type", using: :btree
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t.index ["noteable_type"], name: "index_notes_on_noteable_type", using: :btree
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t.index ["project_id", "noteable_type"], name: "index_notes_on_project_id_and_noteable_type", using: :btree
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t.index ["updated_at"], name: "index_notes_on_updated_at", using: :btree
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end
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create_table "notification_settings", force: :cascade do |t|
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