Question

我有这样的查询：

select c.id, c.name, c.website, c.longdescription, c.description, c.email, 
    (SELECT jsonb_agg(ev) FROM 
        (SELECT ev.title, ev.description, ev.longdescription, 
            (SELECT jsonb_agg(ed) FROM 
                (SELECT ed.startdate, ed.enddate, ed.id WHERE ed.id notnull)ed) as dates, ev.id WHERE ev.id notnull) ev) as events, 
    (SELECT jsonb_agg(ca) FROM (SELECT ct.zip, ca.id, ca.street1, ca.street2, ca.addresstype_id, ST_Y(ca.geopoint::geometry) as latitude, ST_X(ca.geopoint::geometry) as longitude 
    WHERE ca.id notnull)ca) as addresses
FROM companies c
LEFT JOIN events ev ON ev.company_id = c.id
LEFT JOIN companyaddresses ca ON ca.company_id = c.id
LEFT JOIN cities ct ON ct.id = ca.city_id
LEFT JOIN eventdates ed ON ed.event_id = ev.id
GROUP by c.id

我收到错误＆＃34;错误：子查询使用未分组的列＆＃34; ev.title＆＃34;从外部查询位置：125＆＃34;。

无法弄清楚如何为子查询正确分组。有什么建议吗？

Answer 1

尝试一下：

SELECT c.id, c.name, c.website, c.longdescription, c.description, c.email, 
    (SELECT jsonb_agg(ev) FROM 
        (SELECT even.title, even.description, even.longdescription, 
            (SELECT jsonb_agg(ed) FROM
                (SELECT eventdates.startdate, eventdates.enddate, eventdates.id FROM eventdates WHERE eventdates.event_id = even.id)ed) as dates, 
        even.id FROM events even WHERE even.company_id = c.id) ev) as events, 
jsonb_agg((SELECT ca FROM (SELECT ct.zip, ca.id, ca.street1, ca.street2, ca.addresstype_id, ST_Y(ca.geopoint::geometry) as latitude, ST_X(ca.geopoint::geometry) as longitude WHERE ca.id notnull)ca)) as addresses
FROM companies c
LEFT JOIN companyaddresses ca ON ca.company_id = c.id
LEFT JOIN cities ct ON ct.id = ca.city_id
Group by c.id

Postgresql ERROR的问题：子查询使用未分组的列＆＃34; ev.title＆＃34;来自外部查询

1 个答案: