Re: MVCC doc improvements

Neil Conway <neilc@samurai.com> writes:
> This patch improves the MVCC documentation: I added some additional
> discussion of deadlock conditions, removed a mis-statement about index
> locking, and made minor edits in a couple other places.

> -    </para>
> -
> -    <para>
> -     In short, B-tree indexes are the recommended index type for concurrent
> -     applications.
>      </para>

AFAICS, that is not a misstatement.  B-trees are still the only
recommended index type for concurrent-update situations ...
hash has deadlock issues and the other two are just plain not
concurrent.

            regards, tom lane