# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class AddIndexOnCiRunnersContactedAt < ActiveRecord::Migration
include Gitlab::Database::MigrationHelpers
# Set this constant to true if this migration requires downtime.
DOWNTIME = false
disable_ddl_transaction!
def up
add_concurrent_index :ci_runners, :contacted_at
end
def down
remove_concurrent_index :ci_runners, :contacted_at if index_exists?(:ci_runners, :contacted_at)
end
end