tree 4f436fa6fb11eb8ecd7c3646c84cfb6ac1126269
parent 95ce6f393322dc97d2d80404437952fe32943d8f
author buyingyi <buyingyi@123451ca-8445-de46-9d55-352943316053> 1326879934 +0000
committer buyingyi <buyingyi@123451ca-8445-de46-9d55-352943316053> 1326879934 +0000

implementing writing keys to output in group-by operator rather than aggregators

git-svn-id: https://hyracks.googlecode.com/svn/branches/aggregators_dev_next@983 123451ca-8445-de46-9d55-352943316053