MySQL无法更新视图,即使它显示为可更新

我创建了一个视图 INNER JOINS

CREATE 
    ALGORITHM = UNDEFINED 
VIEW `event_registrants` AS
    SELECT 
        `event_details`.`DTT_EVT_start` AS `Event_Start`,
        `attendee_meta`.`ATT_email` AS `ATT_email`,
        `users`.`ID` AS `ID`,
        `user_detail_tbl`.`first_name` AS `first_name`,
        `user_detail_tbl`.`nickname` AS `nickname`,
        `user_detail_tbl`.`last_name` AS `last_name`,
        `registration`.`EVT_ID` AS `EVT_ID`,
        `posts`.`post_title` AS `post_title`,
        `misc_tbl`.`ANS_value` AS `ANS_value`
    FROM
        ((((((`misc_tbl`
        JOIN `registration` ON ((`misc_tbl`.`REG_ID` = `registration`.`REG_ID`)))
        JOIN `event_details` ON ((`registration`.`EVT_ID` = `event_details`.`EVT_ID`)))
        JOIN `posts` ON ((`posts`.`ID` = `registration`.`EVT_ID`)))
        JOIN `attendee_meta` ON ((`registration`.`ATT_ID` = `attendee_meta`.`ATT_ID`)))
        JOIN `users` ON ((`attendee_meta`.`ATT_email` = `users`.`user_email`)))
        JOIN `user_detail_tbl` ON ((`users`.`ID` = `user_detail_tbl`.`user_id`)))

根据mysqltutorial.org( http://www.mysqltutorial.org/create-sql-updatable-views.aspx ),可以使用

SELECT 
    table_name, 
    is_updatable
FROM
    information_schema.views

is_updatable = YES )

出于某些原因,需要一个简单的更新,如:

UPDATE event_registrants
SET nickname='Terminator'
WHERE first_name='John';

产量 Error Code: 1288. The target table event registrants of the UPDATE is not updatable .