-- Add migration script here

-- Create Label
CREATE TABLE label
(
    id bigint NOT NULL GENERATED ALWAYS AS IDENTITY ( INCREMENT 1 START 1 ),
    name text NOT NULL
);

-- Alter variant table
ALTER TABLE public.variant
    ADD label_id bigint,
    ADD variant_description text,
    ADD CONSTRAINT variant_label_id_fkey
       foreign key (label_id)
           references unit(id)
           ON DELETE NO ACTION;