ALTER TABLE inventory_barangs DROP COLUMN IF EXISTS kadar1;
--gopg:split
ALTER TABLE inventory_barangs DROP COLUMN IF EXISTS kadar2;
--gopg:split
ALTER TABLE inventory_barangs ADD COLUMN IF NOT EXISTS jumlah_butir1 DOUBLE PRECISION DEFAULT 0;
--gopg:split
ALTER TABLE inventory_barangs ADD COLUMN IF NOT EXISTS jumlah_butir2 DOUBLE PRECISION DEFAULT 0;