Re: Window functions patch v04 for the September commit fest

From: "Hitoshi Harada" <umi(dot)tanuki(at)gmail(dot)com>
To: "Gregory Stark" <stark(at)enterprisedb(dot)com>
Cc: "Heikki Linnakangas" <heikki(dot)linnakangas(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org, "Simon Riggs" <simon(at)2ndquadrant(dot)com>
Subject: Re: Window functions patch v04 for the September commit fest
Date: 2008-09-02 05:03:38
Message-ID: e08cc0400809012203y7f45deecra2a6dcc9131f782c@mail.gmail.com
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2008/9/2 Gregory Stark <stark(at)enterprisedb(dot)com>:
> And it doesn't answer how to deal with things like
>
> SELECT lag(x,1) OVER (ORDER BY a), lag(x,1) OVER (ORDER BY b)
>
> I, uh, don't actually have any ideas of how to deal with that one :(

For different windows we make different window nodes with different
sort nodes as the patch does.

Regards,

--
Hitoshi Harada

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