sql = [
#-- Add unique id, descr to 'milestone'
"""CREATE TEMPORARY TABLE milestone_old AS SELECT * FROM milestone;""",
"""DROP TABLE milestone;""",
"""CREATE TABLE milestone (
         id              integer PRIMARY KEY,
         name            text,
         time            integer,
         descr           text,
         UNIQUE(name)
);""",
"""
INSERT INTO milestone(name,time, descr) SELECT name,time,'' FROM milestone_old;""",
"""DROP TABLE milestone_old;""",
]
def do_upgrade(env, ver, cursor):
    for s in sql:
        cursor.execute(s)