Re: Windowing Qual Pushdown

From: Daniel Farina <drfarina(at)acm(dot)org>
To: Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)com>
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: Windowing Qual Pushdown
Date: 2010-03-23 07:22:10
Message-ID: 7b97c5a41003230022t2e237030jfbd9fdb1894e3fa1@mail.gmail.com
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On Tue, Mar 23, 2010 at 12:19 AM, Hitoshi Harada <umi(dot)tanuki(at)gmail(dot)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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