tree cf038e44ddd46d644ee41ce99f9daf71a340b32f
parent db1c115ec5270fbaf0556a9f9abd6c40978e67a4
author Taewoo Kim <wangsaeu@yahoo.com> 1476220595 -0700
committer Taewoo Kim <wangsaeu@yahoo.com> 1476230934 -0700

Index-only plan step 2: Added SplitOperator

 - Introduced SplitOperator that sends a tuple to only one output frame unlike the ReplicateOperator
   that propagates a tuple into all outputs frames.
 - Removed PartitioningSplitOperator and PartitioningSplitOperatorDescriptor that are not functional
   (lacking physical operator)
 - Added a unit test case of SplitOperatorDescriptor in PushRuntimeTest.

Change-Id: Ice190827513cd8632764b52c9d0338d65c830740
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1196
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Yingyi Bu <buyingyi@gmail.com>