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Re: wip: functions median and percentile

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
Cc: Greg Stark <gsstark(at)mit(dot)edu>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Dean Rasheed <dean(dot)a(dot)rasheed(at)gmail(dot)com>, Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, David Fetter <david(at)fetter(dot)org>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: wip: functions median and percentile
Date: 2010-10-13 10:48:17
Message-ID: 1286966897.12603.0.camel@fsopti579.F-Secure.com (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-rrreviewers
On mån, 2010-10-11 at 20:46 +0200, Pavel Stehule wrote:
> The problem is in interface. The original patch did it, but I removed
> it. We cannot to unsure immutability of some parameters now.

How about you store the "immutable" parameter in the transition state
and error out if it changes between calls?


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