Re: someone working to add merge?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Peter Eisentraut <peter_e(at)gmx(dot)net>
Cc: pgsql-hackers(at)postgresql(dot)org, Josh Berkus <josh(at)agliodbs(dot)com>, Jaime Casanova <systemguards(at)gmail(dot)com>
Subject: Re: someone working to add merge?
Date: 2005-11-11 18:44:57
Message-ID: 20561.1131734697@sss.pgh.pa.us
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Peter Eisentraut <peter_e(at)gmx(dot)net> writes:
> This assumes that there are indexes defined for the columns involved in
> the merge condition, which is not required anywhere.

Surely they require a unique constraint --- else the behavior isn't even
well defined, is it?

regards, tom lane

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