On Fri, Dec 19, 2003 at 12:54:35 -0800,
Dann Corbit <DCorbit@connx.com> wrote:
>
> There were problems with hashed indexes in PostgreSQL before. I think
> that they have all been addressed in 7.4, but I am not an expert on
> their usage in that environment, so it would be good if others can
> supply feedback. I develop database systems under many environments,
> and so my advice is not PG specific.
While some bugs with hashed indexes were fixed, as far as I know they
still aren't faster than btree indexes for anything. So that you would
want to use btree indexes in preference to hash indexes.