I want to do a JOIN against a subquery that is doing an aggregation. The
query itself is relatively straightforward, but has poor performance.
Here it is:
SELECT a.*, b.*
FROM base AS a
LEFT OUTER JOIN
(SELECT other, COUNT(value), COUNT(DISTINCT value) FROM other GROUP
BY other) AS
On Mon, Dec 18, 2017 at 5:10 PM, David G. Johnston <
david.g.johns...@gmail.com> wrote:
> On Mon, Dec 18, 2017 at 5:00 PM, Dave Johansen
> wrote:
>
>>
>> other = a.other
>> But I get this error:
>> ERROR: invalid reference to FROM-clause entry for table &
