-- +goose Up

ALTER TABLE chat_qrcode_pool
  ADD COLUMN distribution_site_id BIGINT UNSIGNED NULL AFTER group_name,
  ADD KEY idx_chat_qrcode_distribution_site (distribution_site_id, status),
  ADD CONSTRAINT fk_chat_qrcode_distribution_site FOREIGN KEY (distribution_site_id) REFERENCES distribution_sites (id);

-- +goose Down

ALTER TABLE chat_qrcode_pool
  DROP FOREIGN KEY fk_chat_qrcode_distribution_site,
  DROP KEY idx_chat_qrcode_distribution_site,
  DROP COLUMN distribution_site_id;