Re: Windowing Qual Pushdown - Mailing list pgsql-hackers

From Daniel Farina
Subject Re: Windowing Qual Pushdown
Date
Msg-id 7b97c5a41003230022t2e237030jfbd9fdb1894e3fa1@mail.gmail.com
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In response to Re: Windowing Qual Pushdown  (Hitoshi Harada <umi.tanuki@gmail.com>)
Responses Re: Windowing Qual Pushdown
List pgsql-hackers
On Tue, Mar 23, 2010 at 12:19 AM, Hitoshi Harada <umi.tanuki@gmail.com> wrote:
> If you implement that optimization, we need have kind of
> implicit, homologous qual information. Sure, it's possible.

I'm not sure precisely what you mean here.  Do you predict the
mechanism will be complicated?  It's been a burning itch of mine for a
little while now.  I do not know exactly how windowing functions look
in Query values just yet, although I'm very familiar with older
structures there.

fdr


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