From: | "Donald Kerr" <donald(dot)kerr(at)dkerr(dot)co(dot)uk> |
---|---|
To: | "'Michael Glaesemann'" <grzm(at)seespotcode(dot)net> |
Cc: | "'Tom Lane'" <tgl(at)sss(dot)pgh(dot)pa(dot)us>, "'Steve Crawford'" <scrawford(at)pinpointresearch(dot)com>, <pgsql-novice(at)postgresql(dot)org> |
Subject: | Re: Postgres Wishlist |
Date: | 2010-11-13 08:53:47 |
Message-ID: | 2AD99D319C894638AF192798318FB445@DELLM4500 |
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Thread: | |
Lists: | pgsql-novice |
Michael,
First class :) Problem solved!!!
=======================
SELECT col, ('x'||substring(col,1,2))::text::bit(8)::int || ' ' ||
('x'||substring(col,3,2))::text::bit(8)::int || ' ' ||
('x'||substring(col,1,2))::text::bit(8)::int AS oscolor FROM
cartographictext WHERE COL <> '000000' LIMIT 10
Returns:
"0099FF";"0 153 0"
"FF00FF";"255 0 255"
Etc.
Thank you very much to everyone who helped me with this problem.
Regards,
Donald
-----Original Message-----
From: Michael Glaesemann [mailto:grzm(at)seespotcode(dot)net]
Sent: 13 November 2010 08:45
To: Donald Kerr
Cc: 'Tom Lane'; 'Steve Crawford'; pgsql-novice(at)postgresql(dot)org
Subject: Re: [NOVICE] Postgres Wishlist
On Nov 13, 2010, at 3:32 , Donald Kerr wrote:
> Thank you, Tom.
>
> I have tried what you suggest but it does not seem to work:
> 'x'||substring(col,3,2)::text::bit(8)::int returns - "9" is not a
> valid binary digit.
Try with parens:
postgres=# select ('x' || 99::text)::bit(8)::int;
int4
------
153
(1 row)
postgres=# select version();
version
----------------------------------------------------------------------------
--------------------------------------------------------------
PostgreSQL 9.0.1 on x86_64-apple-darwin10.4.0, compiled by GCC
i686-apple-darwin10-gcc-4.2.1 (GCC) 4.2.1 (Apple Inc. build 5664), 64-bit (1
row)
Michael Glaesemann
grzm seespotcode net
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