Re: BUG #6053: Can't do DISTINCT on citext column

On Sun, Jun 5, 2011 at 3:22 PM, Regina <lr(at)pcorp(dot)us> wrote:
>
> The following bug has been logged online:
>
> Bug reference:      6053
> Logged by:          Regina
> Email address:      lr(at)pcorp(dot)us
> PostgreSQL version: 9.1beta1
> Operating system:   Windows
> Description:        Can't do DISTINCT on citext column
> Details:
>
> I have a table I created like this:
> -- With and without the COLLATE in there I get the same error.
>
>  CREATE TABLE test
> (
>  fullname citext COLLATE pg_catalog."POSIX",
> );
>
> INSERT INTO  test(fullname) VALUES('test1'),('test2');
>
> When I do a:
> SELECT DISTINCT fullname FROM test;
>
> or a
>
> SELECT DISTINCT fullname COLLATE pg_catalog."POSIX" FROM test;
>
>
> It gives error:
>
> ERROR:  could not determine which collation to use for lower() function
> HINT:  Use the COLLATE clause to set the collation explicitly.

I don't see a reply to this bug report, but I believe Tom fixed it in beta2.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company