`id`,`tenant_id`,`parent_tenant_id`,`merchant_id`,`region_merchant_id`,`is_del`,`create_date`,`update_date` update wx_merchant_relation set is_del = 1, update_date = now() where region_merchant_id = #{regionId} insert into wx_merchant_relation (id, tenant_id,merchant_id,region_merchant_id,parent_tenant_id) values (#{item.id}, #{item.tenantId}, #{item.merchantId}, #{item.regionMerchantId}, #{item.parentTenantId}) update wx_merchant_relation set is_del = 0, update_date = now() where region_merchant_id = #{regionId} and merchant_id in #{id} update wx_merchant_relation set is_del = 1, update_date = now() where region_merchant_id = #{regionId} and merchant_id in #{id} update wx_merchant_relation set is_del = 1, update_date = now() where merchant_id = #{merchantId}