Re: Planning aggregates which require sorted or distinct

Karen Hill wrote:
> Gavin Sherry wrote:
>> Recenly, I've been researching and putting together a proposal for window
>> functions.
> 
> Implementing NULLS FIRST and NULLS LAST appears like another
> challenging step to getting window functions wrapped up.  Has your
> research lead you to any ideas on what your strategy for NULLS FIRST
> and NULLS LAST likely would be?

maybe I'm missunderstanding your question but tom implemented that
already in -HEAD:

http://archives.postgresql.org/pgsql-committers/2007-01/msg00123.php


Stefan