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Re: BUG #15237: I got "ERROR: source for a multiple-column UPDATEitem must be a sub-SELECT or ROW() expression" - Mailing list pgsql-hackers

From Robert Haas
Subject Re: BUG #15237: I got "ERROR: source for a multiple-column UPDATEitem must be a sub-SELECT or ROW() expression"
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Msg-id CA+TgmobBw7-yQXKD2sx0DiPC=dA_RaZ3f19_ENp4AQcnRcQnzA@mail.gmail.com
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In response to Re: BUG #15237: I got "ERROR: source for a multiple-column UPDATE item must be a sub-SELECT or ROW() expression"  (Andrew Gierth <andrew@tao11.riddles.org.uk>)
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On Wed, Jun 13, 2018 at 12:48 AM, Andrew Gierth
<andrew@tao11.riddles.org.uk> wrote:
> The original patch, a self-described "lazy-sunday project", made
> absolutely no mention of any compatibility issue, simply discussed the
> new options it was allowing, and got no feedback or review. Had it
> mentioned or even hinted that existing queries might be broken, I would
> hope that there would have been more discussion at the time.

I think that is a fair criticism.

-- 
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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