From: Luiz K. Matsumura <luiz@planit.com.br>
To: pgsql-sql@postgresql.org
Subject: Re: Cast on character columns in views
Date: Tue, 04 Sep 2007 04:33:50 -0300
Message-ID: <46DD0A5E.9010400@planit.com.br> (raw)
In-Reply-To: <46DCFD6D.20803@planit.com.br>
References: <144384.86744.qm@web31802.mail.mud.yahoo.com>
<46DCFD6D.20803@planit.com.br>
Luiz K. Matsumura wrote:
>
> Richard Broersma Jr wrote:
>> --- "Luiz K. Matsumura" <luiz@planit.com.br> wrote:
>>
>>> CREATE VIEW view1( id, col1, type1, type2) AS
>>> SELECT table1.id,
>>> table1.col1,
>>> CAST( table2.type1 AS CHARACTER( 3 )),
>>> NULL
>>> FROM table1
>>> JOIN table2 ON table2.fk_table1 = table1.id
>>> UNION ALL
>>> SELECT table1.id,
>>> table1.col1,
>>> CAST( NULL AS CHARACTER( 3 )),
>>> table3.type2
>>> FROM table1
>>> JOIN table3 ON table3.fk_table1 = table1.id;
>>>
>>
>> Would the above changes work?
>>
>> Regards,
>> Richard Broersma Jr.
>>
>>
>>
> Hi Richard,
> Your changes works ! But now I know what mistake I did:
>
> The error is occurring because I'm doing a CREATE OR REPLACE VIEW
> command.
> The command with null:character(3) works too.
> The error is because I create a view then try to change the definition
> with the CREATE OR REPLACE VIEW command
> When I drop the view first , and then create again the view (in a
> separated transaction), now the command works! (this is a bug?)
> I'm using a postgres 8.2.4 on Linux.
>
> Thanks a lot!
>
Ugh, I'm totally crazy with this views
I'm using pgadmin with postgres, when I clink on "view the data of
selected object" button all works fine.
But when I open a query tool window and do:
SELECT * FROM view1;
Now, again type1 column returns as bpchar.
But if I do:
SELECT type1 FROM view1;
Now, type1 column returns as character(3)
If I do
select id, col1, type1,type2 from view1;
Again type1 returns as bpchar. But if I do
select id, col1,type2, type1 from view1;
Now type1 return as character(3).
--
Luiz K. Matsumura
Plan IT Tecnologia Informática Ltda.
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To: pgsql-sql@postgresql.org
Cc: luiz@planit.com.br
Subject: Re: Cast on character columns in views
In-Reply-To: <46DD0A5E.9010400@planit.com.br>
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