Mysql2 ::错误：操作数应该包含5.7列上的1列错误mysql

Question

我正在尝试做这个咨询，我有以下错误：“Mysql2 ::错误：操作数应该包含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

纠正这个：

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

到此：

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

Answer 2

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

看到问题？同桌两次。移除此行

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

如果您想要所有活动，请将INNER更改为LEFT JOIN。