tree 1a95e42c81752442a52d3f542507b6d999b4e50d
parent 768ae495946b33f43670c3a2ba94ad95acccb589
author Jianfeng Jia <jianfeng.jia@gmail.com> 1456456275 -0800
committer Jianfeng Jia <jianfeng.jia@gmail.com> 1456465736 -0800

Add the filesize parameter to estimate a better partition number for ExternalHashGroupby

Change-Id: I3aadec904af64cc2b7b03e6dff399a2288c21a7b
Reviewed-on: https://asterix-gerrit.ics.uci.edu/451
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Yingyi Bu <buyingyi@gmail.com>