Re: Cast on character columns in views

Richard Broersma Jr wrote:
> --- "Luiz K. Matsumura" <luiz(at)planit(dot)com(dot)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!

--
Luiz K. Matsumura
Plan IT Tecnologia Informática Ltda.