Thread: Error with DROP column

Hi All i am trying to DROP the column but i keep getting this error.
ALTER TABLE institution DROP COLUMN name CASCADE;
ERROR:  ALTER TABLE / DROP COLUMN is not implemented

please help me in solving this issue.

Dnia 2003-10-27 20:35, Użytkownik mohan@physics.gmu.edu napisał:
> Hi All i am trying to DROP the column but i keep getting this error.
> 
>  ALTER TABLE institution DROP COLUMN name CASCADE;
> ERROR:  ALTER TABLE / DROP COLUMN is not implemented
> 
> please help me in solving this issue.

Looks like Postgresql older than 7.x (7.3?)

You can't drop column this way. In older versions you can do this only by:
create table temp (columns as you wish to have)
insert into temp select * from old_table
drop old_table
alter table temp rename to old_table

Regards,
Tomasz Myrta

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Hi,

On Mon, 27 Oct 2003 mohan@physics.gmu.edu wrote:

> Hi All i am trying to DROP the column but i keep getting this error.
> 
>  ALTER TABLE institution DROP COLUMN name CASCADE;
> ERROR:  ALTER TABLE / DROP COLUMN is not implemented

I think you are using an old version of PostgreSQL. AFAIR this 
functionality was implemented on 7.3. Here is mine:

*******************************************
postgres@[local]:test=# SELECT version();                                                version
- ---------------------------------------------------------------------------------------------------------PostgreSQL
7.3.4on i686-pc-linux-gnu, compiled by GCC gcc (GCC) 3.2.2 
 
20030222 (Red Hat Linux 3.2.2-5)
(1 row)

postgres@[local]:test=# ALTER TABLE institution drop column name;
ALTER TABLE

*******************************************

Maybe you should upgrade your PostgreSQL.

Regards,
- -- 
Devrim GUNDUZ
devrim@gunduz.org                devrim.gunduz@linux.org.tr         http://www.tdmsoft.com
http://www.gunduz.org
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