On Tue, 18 May 1999, Bruce Momjian wrote:
> > After reading a couple more complaints of hashtable-overflow error
> > messages, I went ahead and rewrote the hash join modules so that they
> > don't use fixed-size hash buckets and a fixed-size overflow area.
> > Instead, each bucket is just a linked list of tuples (thus no wasted
> > space for underused buckets) and everything is put into a private portal
> > so that reclaiming the space is easy/quick. The code is noticeably
> > shorter and more readable than before.
> >
> > The limited amount of testing I've been able to do here shows no
> > problems.
> >
> > Now: do I commit it, or wait till after 6.5? I promised Marc the latter
> > a couple weeks ago, but I am mighty tempted to just go for it...
>
> Shhh. He will never know. Did you promise Marc, or did you answer him
> evasively, like I suggested?
>
> Basically, with the new optimizer, this may be a bug fix because of the
> more frequent hashjoins. That has always been my smokescreen to add the
> feature.
Tom...make you a deal. If you are confident enough with the code that
when v6.5 goes out in ~13days, it won't generate more bug reports then its
fixing...go for it. :)
Marc G. Fournier ICQ#7615664 IRC Nick: Scrappy
Systems Administrator @ hub.org
primary: scrappy@hub.org secondary: scrappy@{freebsd|postgresql}.org
