名称列上的 MySQL 别名未按预期工作

Question

I am running the following query:

SELECT ol.name, o.email AS email, o.phone AS phone, MAX(nrs.created) AS last_subscription, nlf.name AS `neighborhood_name`
FROM organisation AS o
LEFT OUTER JOIN organisation_localisation_fallback AS ol ON o.id = ol.organisation_id and ol.language_id=14 and ol.country_id=19
LEFT JOIN neighborhood_request_subscription AS nrs ON o.id = nrs.from_organisation_id
LEFT JOIN organisation_neighborhood AS orgn ON o.id = orgn.organisation_id
LEFT OUTER JOIN neighborhood_localisation_fallback AS nlf ON orgn.neighborhood_id = nlf.neighborhood_id AND nlf.language_id=14 AND nlf.country_id=19
WHERE o.id IN (73)
GROUP BY o.id
ORDER BY nrs.created IS NOT NULL, nrs.created ASC

It is giving me the following columns as a result:

name | email | phone | last_subscription | name

A result can be seen in this screenshot:

I've tried changing the column to be :

• nlf.name as 'neighborhood_name'
• nlf.name as "neighborhood_name"
• nlf.name as neighborhood_name (with backticks)
• nlf.name as neighborhood_name
• nlf.name 'neighborhood_name'
• nlf.name neighborhood_name
• ...

None of the above work, they keep giving me back "name" as the column name. In the query above, i am also unable to change the alias of the first column "ol.name".

Answer 1

我设法通过使用 CONCAT 解决了这个问题，如下所示：

CONCAT(nlf.name, '') AS neighborhood_name