From: Edgardo Portal <egportal2002@yahoo.com>
To: pgsql-sql@postgresql.org
Subject: Re: concatenate question
Date: Thu, 9 Dec 2010 16:16:48 +0000 (UTC)
Message-ID: <idqvdg$r0q$1@news.eternal-september.org> (raw)
References: <1291757825.16970.18.camel@tony1.localdomain>
<AANLkTi=cdwqU0DtFf68BuD=wb3tWfCToe4hn_AUWJFpQ@mail.gmail.com>
<1291758466.16970.19.camel@tony1.localdomain>
<AANLkTin+GMRqqQqisMhnFCaqQi3xbv7SwBOQQ4RjHLpx@mail.gmail.com>
<1291817313.1654.2.camel@tony1.localdomain>
On 2010-12-08, Tony Capobianco <tcapobianco@prospectiv.com> wrote:
> Thanks so much to everyone for your responses. You've been very
> helpful. I'm running PostGres 8.4 and we're migrating our datawarehouse
> from Oracle 10.2. I guess datatype is implicitly cast in oracle under
> these circumstances:
>
> SQL> create table tony_test as select memberid||addeddate "data" from
> TMPSV_PARENT_MASTER where rownum < 5;
>
> Table created.
>
> SQL> desc tony_test
> Name Null? Type
> ----------------------------------------- --------
> ----------------------------
> data VARCHAR2(59)
>
> SQL> select * from tony_test;
>
> data
> -----------------------------------------------------------
> 3812482212010-06-23 13:53:38
> 3812510902010-06-23 14:12:25
> 3812622482010-06-23 15:24:45
> 3812725152010-06-23 16:35:24
>
>
> Thanks!
FWIW, I think you can also extend the built-in concatenate operator, though
I personally haven't used something like this in a production DB:
BEGIN TRANSACTION ;
CREATE FUNCTION concat_num_ttwotz(numeric, timestamp without time zone)
RETURNS text AS
'select $1::text || $2::text;'
LANGUAGE SQL
IMMUTABLE
RETURNS NULL ON NULL INPUT ;
CREATE OPERATOR || (
PROCEDURE = concat_num_ttwotz
,LEFTARG = numeric
,RIGHTARG= timestamp without time zone
) ;
CREATE TABLE tony_test (
memberid numeric
,addeddate timestamp without time zone
) ;
INSERT INTO tony_test VALUES(1,CURRENT_DATE) ;
SELECT memberid || addeddate FROM tony_test ;
ROLLBACK ;
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-sql@postgresql.org
Cc: egportal2002@yahoo.com
Subject: Re: concatenate question
In-Reply-To: <idqvdg$r0q$1@news.eternal-september.org>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox