Ross,
You're exactly right, I re-created my table with text(may not seem elegant),
the problem is solved. Thanks to all of your advice, I can now go on with my
life with PostgreSQL. :)
jjw
8/25/2002
-----Original Message-----
From: pgsql-sql-owner@postgresql.org
[mailto:pgsql-sql-owner@postgresql.org]On Behalf Of Ross J. Reedstrom
Sent: Saturday, August 24, 2002 9:28 PM
To: Jiaqing Wang
Cc: pgsql-sql@postgresql.org
Subject: Re: [SQL] weird situation, BUG or I'm not doing it right
On Sat, Aug 24, 2002 at 10:56:31PM -0700, Jiaqing Wang wrote:
> Hello,
>
> I found below situation weird, it seems to me a bug.
>
> backend=> select * from valid_addr where state_abrev=upper('pr');
> zip_code | city_name | state_abrev
> ----------+-----------+-------------
> (0 rows)
>
> while "select * from valid_addr where state_abrev='PR';" produces
following
> output
>
<20 lines of output>
You left out the critical piece: what's the schema for the table valid_addr?
I'll deduce that the column "state_abrev" is defined as something like
'char(4)'. It needs to be either char(2) (if _all_ state abbreviations are
guarenteed to be only 2) or as text. fixed with char fields are padded with
blanks. Not a bug, but an feature of the SQL standard.
Ross
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