ALTER TABLE jam_track_tracks RENAME COLUMN url TO url_48;
ALTER TABLE jam_track_tracks RENAME COLUMN md5 TO md5_48;
ALTER TABLE jam_track_tracks RENAME COLUMN length TO length_48;
ALTER TABLE jam_track_tracks ADD COLUMN url_44 VARCHAR;
ALTER TABLE jam_track_tracks ADD COLUMN md5_44 VARCHAR;
ALTER TABLE jam_track_tracks ADD COLUMN length_44 BIGINT;

ALTER TABLE jam_track_rights RENAME COLUMN url TO url_48;
ALTER TABLE jam_track_rights RENAME COLUMN md5 TO md5_48;
ALTER TABLE jam_track_rights RENAME COLUMN length TO length_48;
ALTER TABLE jam_track_rights ADD COLUMN url_44 VARCHAR;
ALTER TABLE jam_track_rights ADD COLUMN md5_44 VARCHAR;
ALTER TABLE jam_track_rights ADD COLUMN length_44 BIGINT;