Banshee.Database.BansheeDbFormatMigrator.Migrate_41 C# (CSharp) Метод

        private bool Migrate_41 ()
        {
            Execute ("DROP TABLE IF EXISTS CoreShuffleDiscards");
            Execute ("DROP INDEX IF EXISTS CoreShuffleDiscardsIndex");

            Execute (@"
                CREATE TABLE CoreShuffleModifications (
                    ShufflerId           INTEGER,
                    TrackID              INTEGER,
                    LastModifiedAt       INTEGER,
                    ModificationType     INTEGER,
                    CONSTRAINT one_entry_per_track UNIQUE (ShufflerID, TrackID)
                )
            ");
            Execute ("CREATE INDEX CoreShuffleModificationsIndex ON CoreShuffleModifications (ShufflerId, TrackID, LastModifiedAt, ModificationType)");
            return true;
        }