tree b1ca03db43a0419e7549332544a99e49cf3c8b14
parent 486adf9606ab2bfad8d59363033b00b9c929fd58
author JArod <jarodwen@gmail.com> 1380859102 -0700
committer JArod <jarodwen@gmail.com> 1383605200 -0500

Fixed the incorrect exchange merging introduced by the previous commit;
updated the IntroHashPartitionMergeExchange rule to handle the
hash-merge-exchange operator.