MariaDb不支持ANY_VALUE()函数 [英] MariaDb does not support ANY_VALUE() function

问题描述

我有一个连接到mysql db的laravel项目，当我更换服务器时，我的代码失败了，因为我的新服务器上有一个 Mariadb ，当我检查日志时，我意识到，MariaDb有一些不受支持的功能，即 ANY_VALUE()，

I have a laravel project which is connected to mysql db, when I change my server, my codes got failed because my new server has a Mariadb, when I checked my logs, I have realised that, there is some unsupported function from MariaDb which is ANY_VALUE(),

如何根据MariaDb编辑我的SQL?

how can I edit my sql according to MariaDb ?

select(DB::raw('SUM(price) as price, SUM(price_now) as price_now, 
   ANY_VALUE(price_available) as price_available'),'adult_count')

错误日志

推荐答案

今天，您已经解决了该问题.但是明天，当您运行相同的查询时，您将得到一个不同的错误.

For today, you have solved the problem. But tomorrow, when you run the same query, you will get a different error.

在旧版本的MySQL或MariaDB中，您将获得任何值". price_available 而不是 GROUPing BY 时使用.这实际上是在不良做法"之间的某个地方.和违反标准".相对最近，MariaDB，然后是后来的MySQL，切换到仅完整分组依据".那时， ANY_VALUE()开始出现在MySQL中，但显然MariaDB放弃了.

In older versions of MySQL or MariaDB, you would get "any value" for price_available when not GROUPing BY it. That was effectively somewhere between "bad practice" and a "standards violation". Relatively recently, MariaDB, then later MySQL, switched to "only full group by". At that time, ANY_VALUE() came into existence for MySQL, but apparently MariaDB dropped the ball.

对于旧版本和新版本均应安全的旧解决方法是使用 MIN(price_available)或其他一些汇总函数.(如果该列可能具有 NULL ，则各种聚合可能会也可能不会以您喜欢的方式处理 NULL .)

The old workaround, which should be safe for both old and new versions is to use MIN(price_available) or some other aggregate function. (If the column might have NULL, the various aggregates might or might not handle NULL the way you prefer.)

另请参见 ONLY_FULL_GROUP_BY 设置.

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