Mysql2 ::错误：操作数应该包含1列（s）错误MySQL上5.7

Question

我想这样做咨询，我有以下错误：“Mysql2 ::错误：操作数应包含1列”

SELECT 
    COUNT(ev.id) as event_counter, 
    events.* 
FROM 
    `events` INNER JOIN `events_organizations` ON `events`.`id` = `events_organizations`.`event_id` 
    LEFT OUTER JOIN events ev ON ev.model_id = events.id 
WHERE 
    `events_organizations`.`organization_id` = 1 
    AND (events.kind = 1 
     AND events_organizations.event_administrator = true) 
    AND (events.situation = 1) 
    AND (events.event_type_id = '3','5','2','1','4') 
GROUP BY 
    events.id 
ORDER BY 
    event_counter DESC, name 

Answer 1

纠正这一点，

AND (events.event_type_id = '3','5','2','1','4') 

这样：

AND (events.event_type_id IN ('3','5','2','1','4')) 

Answer 2

FROM events INNER JOIN `events_organizations`...LEFT OUTER JOIN events 

看到这个问题？同桌twice.Remove此行

LEFT OUTER JOIN events ev ON ev.model_id = events.id 

并改变内为左连接，如果你想要的所有事件。