Re: Combining Aggregates

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: David Rowley <dgrowleyml(at)gmail(dot)com>, Simon Riggs <simon(at)2ndquadrant(dot)com>
Cc: Kouhei Kaigai <kaigai(at)ak(dot)jp(dot)nec(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org>, Amit Kapila <amit(dot)kapila(at)enterprisedb(dot)com>
Subject: Re: Combining Aggregates
Date: 2015-02-20 20:01:52
Message-ID: 54E792B0.6020306@gmx.net
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Is there a case where the combining function is different from the
transition function, other than for count?

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