I have added this to the next commit-fest:
https://commitfest.postgresql.org/action/commitfest_view?id=6
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Marko Tiikkaja wrote:
> Hi,
>
> This came up on IRC today and I recall several instances of this during
> the last two months or so, so I decided to send a patch. The problem in
> question occurs when you have extra parentheses in an INSERT list:
>
> INSERT INTO foo(a,b,c) SELECT (a,b,c) FROM ..; or
> INSERT INTO foo(a,b,c) VALUES((0,1,2));
>
> Both of these give you the same error:
> ERROR: INSERT has more target columns than expressions
>
> The first version is a lot more common and as it turns out, is sometimes
> very hard to spot. This patch attaches a HINT message to these two
> cases. The message itself could probably be a lot better, but I can't
> think of anything.
>
> Thoughts?
>
>
> Regards,
> Marko Tiikkaja
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>
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-- Bruce Momjian <bruce@momjian.us> http://momjian.us EnterpriseDB
http://enterprisedb.com
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