Re: Possible bug on insert - Mailing list pgsql-general

From Rick Gigger
Subject Re: Possible bug on insert
Date
Msg-id 019b01c38c43$d15c9930$0700a8c0@trogdor
Whole thread Raw
In response to Generating a SQL Server population routine  (Martin_Hurst@dom.com)
Responses Re: Possible bug on insert
List pgsql-general
What was it that changed in 7.3 that made this behavior change.  (it worked
in 7.2)

Thanks,

Rick Gigger

----- Original Message -----
From: "Tom Lane" <tgl@sss.pgh.pa.us>
To: "Rick Gigger" <rick@alpinenetworking.com>
Cc: <pgsql-general@postgresql.org>
Sent: Monday, October 06, 2003 1:04 PM
Subject: Re: [GENERAL] Possible bug on insert


> "Rick Gigger" <rick@alpinenetworking.com> writes:
> > insert into bugtest (a) select '1' union select '1'; -- this one fails
>
> > Is this a bug?
>
> No.  It's unfortunate perhaps, but it's not a bug.  The UNION forces us
> to make a decision about the output datatype of the UNION operation.
> In your other cases the chosen datatype is integer, which can later be
> cast to smallint for the insert, but in this case the chosen datatype is
> text, which is not implicitly castable to smallint.
>
> regards, tom lane
>
> ---------------------------(end of broadcast)---------------------------
> TIP 8: explain analyze is your friend
>


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