"Joshua D. Drake" <jd(at)commandprompt(dot)com> writes:
> I heard mention from Berkus that these may be going by the wayside. Any
> truth to that?
Tatsuo put up some benchmark numbers showing that they can be of use,
so unless somebody refutes those results, I guess they stay. (I have
doubts about the results myself, but have been too busy with other
stuff to investigate.)
regards, tom lane