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Re: wip: functions median and percentile

From: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
To: Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)com>
Cc: David Fetter <david(at)fetter(dot)org>, PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: wip: functions median and percentile
Date: 2010-09-26 10:39:21
Message-ID: AANLkTinirV9g=TMZFwo-Erz3ZsBacxAV9QO1343TOPOA@mail.gmail.com (view raw or flat)
Thread:
Lists: pgsql-hackerspgsql-rrreviewers
Hello,

there is updated version - with support of window clause. The limits
are work_mem for using inside window aggregate or unlimited when it is
used as standard query.

This patch needs a few work - can share a compare functionality with
tuplesort.c, but I would to verify a concept now.

Comments?

Regards

Pavel

Attachment: median.diff
Description: application/octet-stream (26.3 KB)

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