On Mon, Jan 23, 2012 at 01:21:20AM +0400, Alexander Korotkov wrote: > Updated patch is attached. I've updated comment > of mcelem_array_contained_selec with more detailed description of > probability distribution assumption. Also, I found that "rest" behavious > should be better described by Poisson distribution, relevant changes were > made.
Thanks. That makes more of the math clear to me. I do not follow all of it,
but I feel that the comments now have enough information that I could go about
doing so.
> + /* Take care about events with low probabilities. */
> + if (rest > DEFAULT_CONTAIN_SEL)
> + {
Why the change from "rest > 0" to this in the latest version?
> + /* emit some statistics for debug purposes */
> + elog(DEBUG3, "array: target # mces = %d, bucket width = %d, "
> + "# elements = %llu, hashtable size = %d, usable
> entries = %d",
> + num_mcelem, bucket_width, element_no, i, track_len);
That should be UINT64_FMT. (I introduced that error in v0.10.)
I've attached a new version that includes the UINT64_FMT fix, some edits of
your newest comments, and a rerun of pgindent on the new files. I see no
other issues precluding commit, so I am marking the patch Ready for Committer.
If I made any of the comments worse, please post another update.
Thanks,
nm
arrayanalyze-0.13.patch.gz
Description: application/gunzip
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