[Bizgres-general] Re: Bitmap Indexes : Block packing calculation error

[Simon Riggs]

On Wed, 2006-01-25 at 23:32 -0800, Jie Zhang wrote:

> Yeah, I have actually noticed this bug, but thank you for pointing that out.
> Ayush posted a patch of this fix and also some test results on TPCH queries
> in Jan 16. I am wondering if you have seen this patch.
> 
> > Mark Kirkwood wrote 
> > original:
> > 
> > 9 s
> > 20 s
> > 17 s
> > 
> > patched:
> > 
> > 5 s
> > 14 s
> > 14 s
> > 

Jie, I think you should have posted something on *this* list publicly if
you want community support. A lot of people have been wondering whether
the bit maps were any good at all. This patch seems to change things
significantly.

...but hey, if two people fixed the bug independently then at least we
know it was the the right bug to fix.

Best Regards, Simon Riggs