On Sat, 11 Oct 2003, Bill Shui wrote:
> Hi,
>
> I am using postgreSQL 7.3.4
>
> I have a single table in the databasse.
>
> mytable(id, tag, parent, label)
> all in int8.
>
> hash index is built for id and btree index for all attributes.
>
Hash indexes are generally a bad idea in 7.3.
> select tag from mytable where id = 1;
Try: select tag from mytable where id = 1::int8;
This is a known flaw of the typing system which the community has been
discussing/attempting to fix for some time.
Gavin