db/primary_migrate/20190306143757_add_disavowal_token_fingerprint_to_events.rb
class AddDisavowalTokenFingerprintToEvents < ActiveRecord::Migration[5.1]
disable_ddl_transaction!
def change
add_column :events, :disavowed_at, :timestamp
add_column :events, :disavowal_token_fingerprint, :string
add_index :events, :disavowal_token_fingerprint, algorithm: :concurrently
end
end