apavlo/h-store — pull request #59 by mimosally (2012-05-14 01:07:17+00:00)
Title: Distributed Query Optimizations: FastAggregate and FastCombine

Add fastaggregate_sum and fastcombine feature in Java.

Add fragmentIds[] loop and use fragmentId to check fastaggregate or fastcombine planfragments in PartitionExecutor, delete some unnecessary object creation, add check before log debug, add groupby check in FastAggregateOptimization, change executeFastAggregate() and executeFastCombine() to execute().