gitlab-org--gitlab-foss/db/migrate/20170809133343_add_broadcast_messages_index.rb

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# See http://doc.gitlab.com/ce/development/migration_style_guide.html
# for more information on how to write migrations for GitLab.
class AddBroadcastMessagesIndex < ActiveRecord::Migration[4.2]
include Gitlab::Database::MigrationHelpers
# Set this constant to true if this migration requires downtime.
DOWNTIME = false
disable_ddl_transaction!
COLUMNS = %i[starts_at ends_at id].freeze
def up
add_concurrent_index :broadcast_messages, COLUMNS
end
def down
remove_concurrent_index :broadcast_messages, COLUMNS
end
end