zkxw/docs/sql/migrate-protocol-consent-health-survey.sql

-- 采集协议单：知情同意书、孕妇健康调查表附件字段
-- 2026-07-13

ALTER TABLE `biz_collection_protocol`
  ADD COLUMN `consent_form_urls` varchar(4000) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '知情同意书附件URL（逗号分隔）' AFTER `protocol_attachments`,
  ADD COLUMN `health_survey_form_urls` varchar(4000) COLLATE utf8mb4_unicode_ci DEFAULT NULL COMMENT '孕妇健康调查表附件URL（逗号分隔）' AFTER `consent_form_urls`;