1ALTER TABLE worktree_repository_statuses
 2ADD COLUMN status_kind INTEGER,
 3ADD COLUMN first_status INTEGER,
 4ADD COLUMN second_status INTEGER;
 5
 6UPDATE worktree_repository_statuses
 7SET
 8    status_kind = 0;
 9
10ALTER TABLE worktree_repository_statuses
11ALTER COLUMN status_kind
12SET
13    NOT NULL;