ALTER TABLE memo ADD COLUMN resource_name TEXT;

UPDATE memo SET resource_name = uuid_in(md5(random()::text || random()::text)::cstring);

ALTER TABLE memo ALTER COLUMN resource_name SET NOT NULL;

CREATE UNIQUE INDEX idx_memo_resource_name ON memo (resource_name);

ALTER TABLE resource ADD COLUMN resource_name TEXT;

UPDATE resource SET resource_name = uuid_in(md5(random()::text || random()::text)::cstring);

ALTER TABLE resource ALTER COLUMN resource_name SET NOT NULL;

CREATE UNIQUE INDEX idx_resource_resource_name ON resource (resource_name);