Sequel.migration do up do SequelRails.connection.run(%Q{ CREATE INDEX layers_maps_map_id_idx ON layers_maps (map_id) }) SequelRails.connection.run(%Q{ CREATE INDEX layers_kind_idx ON layers (kind) }) end down do SequelRails.connection.run(%Q{ DROP INDEX IF EXISTS layers_maps_map_id_idx }) SequelRails.connection.run(%Q{ DROP INDEX IF EXISTS layers_kind_idx }) end end