gitlab-org--gitlab-foss/db/migrate/20180511090724_add_index_on...

class AddIndexOnCiRunnersRunnerType < ActiveRecord::Migration[4.2]
  include Gitlab::Database::MigrationHelpers

  DOWNTIME = false

  disable_ddl_transaction!

  def up
    add_concurrent_index :ci_runners, :runner_type
  end

  def down
    # rubocop:disable Migration/RemoveIndex
    remove_index :ci_runners, :runner_type
  end
end
Add version 4.2 to all existing migrations DB schema generated by a migration may look different in rails 4 and 5 (because rails 5 may use different default values). For this reason it's important to explicitly set for which rails version a migration was written for. See https://stackoverflow.com/questions/35929869/activerecordmigration-deprecation-warning-asks-for-rails-version-but-im-no/35930912#35930912 2018-11-13 07:27:31 +00:00			`class AddIndexOnCiRunnersRunnerType < ActiveRecord::Migration[4.2]`
Add index on runner_type for ci_runners We use this to filter runner and will use this increasingly in future instead of is_shared so it should be indexed 2018-05-11 09:10:41 +00:00			`include Gitlab::Database::MigrationHelpers`

			`DOWNTIME = false`

			`disable_ddl_transaction!`

			`def up`
			`add_concurrent_index :ci_runners, :runner_type`
			`end`

			`def down`
Enable rubocop for db/*/ and ee/db/*/ 2018-07-25 08:59:23 +00:00			`# rubocop:disable Migration/RemoveIndex`
Add index on runner_type for ci_runners We use this to filter runner and will use this increasingly in future instead of is_shared so it should be indexed 2018-05-11 09:10:41 +00:00			`remove_index :ci_runners, :runner_type`
			`end`
			`end`