== CreateTracks: migrating ====================================================
-- create_table(:tracks)
   -> 0.0500s
-- execute("    ALTER TABLE tracks ADD COLUMN duration INTERVAL\n")
rake aborted!
Mysql::Error: #42000You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use near 'INTER
VAL' at line 1:     ALTER TABLE tracks ADD COLUMN duration INTERVAL