On Thu, Aug 9, 2012 at 12:44 AM, Alexander Korotkov <aekorot...@gmail.com>wrote:
> My conclusion is so, that current errors are probably ok for selectivity > estimation. But taking into attention that generated datasets ideally fits > assumptions of estimation, there could be room for improvement. Especially, > it's unclear why estimate for "<@" and "@>" have much greater error than > estimate for "&&". Possibly, it's caused by some bugs. > ITSM, I found reason of inaccuracy. Implementation of linear interpolation was wrong. Fixed version is attached. Now, need to rerun tests, possible refactoring and comments rework. ------ With best regards, Alexander Korotkov.
range_stat-0.4.patch.gz
Description: GNU Zip compressed data
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