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Re: WIP patch for multiple column assignment in UPDATE - Mailing list pgsql-hackers

From Tom Lane
Subject Re: WIP patch for multiple column assignment in UPDATE
Date
Msg-id 28860.1403185041@sss.pgh.pa.us
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In response to Re: WIP patch for multiple column assignment in UPDATE  (Pavel Stehule <pavel.stehule@gmail.com>)
Responses Re: WIP patch for multiple column assignment in UPDATE  (Pavel Stehule <pavel.stehule@gmail.com>)
Re: WIP patch for multiple column assignment in UPDATE  (Robert Haas <robertmhaas@gmail.com>)
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Pavel Stehule <pavel.stehule@gmail.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.
        regards, tom lane

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