Date: Fri, 7 Apr 2017 12:28:54 -0400
From: Bruce Momjian <bruce@momjian.us>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: PostgreSQL-documentation <pgsql-docs@postgresql.org>
Subject: Re: Window function docs
Message-ID: <20170407162854.GH5757@momjian.us>
References: <20170406214918.GA5757@momjian.us>
 <15355.1491516824@sss.pgh.pa.us>
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On Thu, Apr  6, 2017 at 06:13:44PM -0400, Tom Lane wrote:
> avg() is going to be evaluated across the current frame, not the whole
> partition.  I don't mind trying to be more precise than "appropriate set",
> but it doesn't help to be apparently precise but wrong.
> 
> Not really convinced by the s/regular/normal/g changes.  That doesn't seem
> to clarify much either.  Maybe it would help to define "normal" near here.
> There's a definition in func.sgml (that they are not ordered-set or
> hypothetical-set aggregates) but that's too far away.

This change is not on my patch yes but what do you think about changing
"regular" and "normal" aggregate designations to "generic"?  That seems
clearer because the aggregates work in non-window and window contexts.

-- 
  Bruce Momjian  <bruce@momjian.us>        http://momjian.us
  EnterpriseDB                             http://enterprisedb.com

+ As you are, so once was I.  As I am, so you will be. +
+                      Ancient Roman grave inscription +


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