| 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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| Lists: | pgsql-hackers |
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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