Re: Simple join optimized badly?

From: "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
To: "Jim C(dot) Nasby" <jim(at)nasby(dot)net>
Cc: Tobias Brox <tobias(at)nordicbet(dot)com>, Chris Browne <cbbrowne(at)acm(dot)org>, pgsql-performance(at)postgresql(dot)org
Subject: Re: Simple join optimized badly?
Date: 2006-10-10 14:23:30
Message-ID: 452BACE2.5010700@commandprompt.com
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Jim C. Nasby wrote:
> On Mon, Oct 09, 2006 at 03:41:09PM -0700, Joshua D. Drake wrote:
>>> One of the big problems with doing set enable_...=off is that there's no
>>> way to embed that into something like a view, so you're almost forced
>>> into putting into the application code itself, which makes matters even
>>> worse. If you could hint this within a query (maybe even on a per-table
>>> level), you could at least encapsulate that into a view.
>> You can easily pass multiple statements within a single exec() or push
>> it into an SPF.
>
> Unless I'm missing something, putting multiple statements in a single
> exec means you're messing with the application code. And you can't
> update a SRF (also means messing with the application code). Though, I
> suppose you could update a view that pulled from an SRF...

I always think of application code as outside the db. I was thinking
more in layers.

Joshua D. Drake

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