Nested aggregations return incorrect values

[andpol]

According to the docs, count(disctinct()) is supported, but other nested aggregate queries still return values, but they are not correct. A non 200 response should be returned instead, since they are not supported.

Some examples:
select mean(distinct(customerId)) from customer_events returns null
select min(distinct(customerId)) from customer_events returns 1.7976931348623157e+308
select max(distinct(customerId)) from customer_events returns -1.7976931348623157e+308

[Dieterbe]

you don't even need to nest. see #780

[jvshahid]

This is a duplicate of #834. Closing.

@Dieterbe I'm not sure what you are trying to say ? these two issues aren't related.

[Dieterbe]

@jvshahid well the OP mentioned that you get bad values using min(distinct()) and max(distinct()), and i was just commenting that in #780 you can see the same incorrect values being returned without having to nest. i.e. #780 shows that it happens with just max(field), you don't need max(distinct(field)) to reproduce the incorrect value. ditto for min.