Flink CDC mysql同步到doris，从哪里出来的？想问下有什么思路么？

Flink CDC mysql同步到doris，报数据类型转换错误 Caused by: java.lang.NumberFormatException: For input string: "UTF8MB4'0"，分析不出来这个 "UTF8MB4'0" 从哪里出来的？想问下有什么思路么？CREATE TABLE mysql表 (
id int(11) unsigned NOT NULL AUTO_INCREMENT ,
project_id int(11) unsigned NOT NULL DEFAULT '0' ,
faq_id int(11) unsigned NOT NULL DEFAULT '0',
elasticsearch_id varchar(30) DEFAULT NULL,
question longtext NOT NULL COMMENT,
created_time int(11) unsigned NOT NULL DEFAULT '0' ,
updated_time int(11) unsigned NOT NULL DEFAULT '0',
PRIMARY KEY (id) USING BTREE,
KEY idx_faq_id (faq_id) USING BTREE
) ENGINE=InnoDB AUTO_INCREMENT=13540 DEFAULT CHARSET=utf8mb4 ROW_FORMAT=DYNAMIC ;