alter table `question_options` add column `required_input_rules` varchar(100) NULL after `required_input_label`,change `required_input_label` `required_input_label` varchar(255) character set latin1 collate latin1_swedish_ci NOT NULL;
alter table `questions` add column `is_multiselect` tinyint DEFAULT '0' NULL after `question_option_id`;
alter table `questions` add column `prefix` varchar(255) NULL after `is_multiselect`, add column `postfix` varchar(255) NULL after `prefix`;