ppanel-web/migrations/postgres/02108_user_referral.sql

-- migrate:up
ALTER TABLE "user"
    ADD COLUMN "referral_percentage" SMALLINT NOT NULL DEFAULT 0,
    ADD COLUMN "only_first_purchase" BOOLEAN NOT NULL DEFAULT true;

-- migrate:down
ALTER TABLE "user"
DROP COLUMN "referral_percentage",
DROP COLUMN "only_first_purchase";