我试图通过以下查询插入数据：

insert into email (emailAddress, isPreferredEmail, customer_id, upload_id)
select cast(Email as char(100)) a,
       TRUE,
       (select id from customer c where c.dbvehregno=ChassisNo),
       uploadid
  from hyundaiindividualreport
 where id in (select max(id) 
                from hyundaiindividualreport 
               where length(Email>=5) 
                 and uploadid=900 
               group by ChassisNo);

但它在扔：

Error Code: 1292. Truncated incorrect DOUBLE value

电子邮件表结构：

Table: email
Columns:
email_Id bigint(20) AI PK, 
emailAddress varchar(300) ,
isPreferredEmail bit(1) ,
updatedBy varchar(255) ,
customer_id bigint(20) ,
upload_id varchar(255)