Re: Question about Bitmap Heap Scan/BitmapAnd

["Guillaume Smet" <guillaume(dot)smet(at)gmail(dot)com>]

On 2/15/07, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> I think that the
> answer is probably "because the index is lossy for this operator,
> so it has to be checked even if the bitmap didn't become lossy".
> You'd have to check the GIST opclass definition to be sure.

Any idea on what I have to look for (if it's of any interest for
anyone, otherwise, I can live with your answer)?

Thanks.

--
Guillaume