> 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.
:-)
-- Bruce Momjian | http://www.op.net/~candle maillist@candle.pha.pa.us | (610)
853-3000+ If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill,
Pennsylvania19026
