From: | Marko Tiikkaja <marko(dot)tiikkaja(at)cs(dot)helsinki(dot)fi> |
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To: | "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
Subject: | INSERT and parentheses |
Date: | 2010-04-26 12:57:23 |
Message-ID: | 4BD58DB3.4070605@cs.helsinki.fi |
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Lists: | pgsql-hackers |
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
Attachment | Content-Type | Size |
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rowexpr.patch | text/plain | 1.6 KB |
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