Add PARTITIONED BY column
ALTER TABLE MyIceberg.MyDatabase.Tab1 ADD PARTITIONED BY c3;
Drop PARTITIONED BY column
ALTER TABLE MyIceberg.MyDatabase.Tab1 DROP PARTITIONED BY c3;
Add multiple PARTITION BY options
ALTER TABLE MyIceberg.MyDatabase.Tab3 ADD PARTITION BY (c4, BUCKET(16,c1), TRUNCATE(3,c1));