Re: [SQL] upper() and lower() on varchar

On Wed, 2 Sep 1998, Sferacarta Software wrote:

> marted, 1 settembre 98, you wrote:
>
> MB> Hi,
>
> MB> Is there a way to get upper() and lower() to work on a varchar column? It
> MB> seems like these functions are only defined on the text datatype (in 6.3.2).
>
> MB> I guess what I need in this case is some way to convert varchar to text.
> MB> Will (text_in(varchar_out(column)) work?
>
>
> It works for me (6.3.2)
> take a look:
>
> create table a(a varchar(10));
> insert into a values ('AAA');
> insert into a values ('aaa');
>
> select * from tbl;
> fld
> ---
> aaa
> AAA
> (2 rows)
>
> select * from tbl where upper(fld)='AAA';
> fld
> ---
> aaa
> AAA
> (2 rows)

I tried some stuff, and

select lower(aroms) from product where aroms='VAUGHAN STEVIE RAY'

works, but:

select * from product where lower(aroms)='vaughan stevie ray';
FATAL 1: palloc failure: memory exhausted

And:

rockhouse=> create index product_lower on product (lower(aroms));
ERROR: DefineIndex: (null) class not found

Anybody knows if I'm doing something wrong here? This is a 6.3.2 system
with all patches from ftp.postgresql.org applied, plus the patch for
enabling functional indices.

Maarten

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