lovelysystems/ls-hive — pull request #2 by quodt (2012-06-18 22:35:14+00:00)
Title: implemented udaf UDAFCumulateHistogram

- implemented udaf UDAFCumulateHistogram
- moved method mergeHistograms from UDAFCollectHistogram to UDAFCumulateHistogram
- removed method merge from UDAFCollectHistogram (not used)
- some basic tests from UDAFCumulateHistogram and UDAFCollectHistogram