Bugs item #2931465, was opened at 2010-01-13 17:57
Message generated for change (Comment added) made by sjoerd
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Category: Core
Group: MonetDB Common CVS Head
Status: Open
>Resolution: Fixed
Priority: 5
Private: No
Submitted By: Roberto Cornacchia (cornuz)
>Assigned to: Sjoerd Mullender (sjoerd)
Summary: wrong histogram()

Initial Comment:
Found by chance while looking into a problem with pftijah term dictionary, the 
HEAD seems to compute wrong histograms on string bats.
Nov2009 branch seems correct.

In attachment, the files needed to run a test. It indexes a small xml file and 
then inspects the terrm dictionary.
Just source the runme.bash file (it just moves the xml file in /tmp and runs 
Mserver with the test mil script)

I don't think this is related to pathfinder at all, but this was the easiest 
way to create a reproducible test.
I suspect the bug is in gdk, as it may be related to the recent changes that 
store hash values in string heaps.



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>Comment By: Sjoerd Mullender (sjoerd)
Date: 2010-01-14 12:33

Message:
Good catch.
There was a break missing which caused that we went through the bat twice
to increment counts.  I.e. all values were double the correct value.
Fixed in CVS.

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