Re: First Aggregate Funtion?
От | Jim Nasby |
---|---|
Тема | Re: First Aggregate Funtion? |
Дата | |
Msg-id | 55AE8B4F.3050207@BlueTreble.com обсуждение исходный текст |
Ответ на | Re: First Aggregate Funtion? (Marko Tiikkaja <marko@joh.to>) |
Список | pgsql-hackers |
On 7/20/15 11:07 AM, Marko Tiikkaja wrote: > On 7/20/15 6:02 PM, Corey Huinker wrote: >> By using only(a.name_of_the_thing) we'd have a bit more clarity that the >> author expected all of those values to be the same across the aggregate >> window, and discovering otherwise was reason enough to fail the query. >> >> *IF* we're considering adding these to core, I think that only() would be >> just a slight modification of the last() implementation, and could be >> done >> at the same time. >> >> [1] I don't care what it gets named. I just want the functionality. > > A big +1 from me. In fact, I wrote a patch implementing this for 9.5 > but never got around to finishing it. A big +1 here too; I've wanted this many times in the past. -- Jim Nasby, Data Architect, Blue Treble Consulting, Austin TX Data in Trouble? Get it in Treble! http://BlueTreble.com
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