Re: WIP patch for multiple column assignment in UPDATE

From: Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: WIP patch for multiple column assignment in UPDATE
Date: 2014-06-19 21:11:47
Message-ID: CAFj8pRCjZ_6mu_kMKRD8oe8KKPnbNOwCTUBxY2nL=2-HDH2zDQ@mail.gmail.com
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2014-06-19 15:37 GMT+02:00 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:

> Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> writes:
> > I did some tests and It looks so it allows only some form of nested loop.
>
> [ shrug... ] It's a subplan. One evaluation per outer row is what
> people are expecting.
>

ok

regards

Pavel

>
> regards, tom lane
>

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