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Re: wip: functions median and percentile

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: David Fetter <david(at)fetter(dot)org>
Cc: Kevin Grittner <Kevin(dot)Grittner(at)wicourts(dot)gov>, Robert Haas <robertmhaas(at)gmail(dot)com>, Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Greg Stark <gsstark(at)mit(dot)edu>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: wip: functions median and percentile
Date: 2010-08-19 18:17:42
Message-ID: 23246.1282241862@sss.pgh.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-rrreviewers
David Fetter <david(at)fetter(dot)org> writes:
> On Thu, Aug 19, 2010 at 01:25:36PM -0400, Tom Lane wrote:
>> A name like "arithmetic_median" seems much less likely to get
>> blindsided by future standardization.

> Yep.

OTOH, if Pavel's right that Oracle already has an aggregate named
median(), it seems quite unlikely that the SQL committee would pick
a definition incompatible with Oracle's to standardize on.

			regards, tom lane

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