db/migrate/20170121130655_add_index_to_ci_runners_for_is_shared.rb


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# rubocop:disable RemoveIndex
class AddIndexToCiRunnersForIsShared < ActiveRecord::Migration
  include Gitlab::Database::MigrationHelpers

  DOWNTIME = false

  disable_ddl_transaction!

  def up
    add_concurrent_index :ci_runners, :is_shared
  end

  def down
    if index_exists?(:ci_runners, :is_shared)
      remove_index :ci_runners, :is_shared
    end
  end
end