----------Optimized logical plan:
distribute result [%0->$$0]
-- DISTRIBUTE_RESULT  |PARTITIONED|
  exchange
  -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
    project ([$$0])
    -- STREAM_PROJECT  |PARTITIONED|
      exchange
      -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
        data-scan []<-[$$2, $$0] <- Metadata:Dataverse
        -- DATASOURCE_SCAN  |PARTITIONED|
          exchange
          -- ONE_TO_ONE_EXCHANGE  |PARTITIONED|
            empty-tuple-source
            -- EMPTY_TUPLE_SOURCE  |PARTITIONED|
----------Hyracks job:
{
 "connectors": [
  {
   "connector": {
    "display-name": "org.apache.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor[CDID:0]",
    "id": "CDID:0",
    "java-class": "org.apache.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor"
   },
   "in-operator-id": "ODID:2",
   "in-operator-port": 0,
   "out-operator-id": "ODID:0",
   "out-operator-port": 0
  },
  {
   "connector": {
    "display-name": "org.apache.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor[CDID:1]",
    "id": "CDID:1",
    "java-class": "org.apache.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor"
   },
   "in-operator-id": "ODID:0",
   "in-operator-port": 0,
   "out-operator-id": "ODID:3",
   "out-operator-port": 0
  },
  {
   "connector": {
    "display-name": "org.apache.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor[CDID:2]",
    "id": "CDID:2",
    "java-class": "org.apache.hyracks.dataflow.std.connectors.OneToOneConnectorDescriptor"
   },
   "in-operator-id": "ODID:3",
   "in-operator-port": 0,
   "out-operator-id": "ODID:1",
   "out-operator-port": 0
  }
 ],
 "operators": [
  {
   "display-name": "org.apache.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor[ODID:0]",
   "id": "ODID:0",
   "in-arity": 1,
   "java-class": "org.apache.hyracks.storage.am.btree.dataflow.BTreeSearchOperatorDescriptor",
   "out-arity": 1,
   "partition-constraints": {
    "count": "1",
    "location": {"0": "asterix_nc1"}
   }
  },
  {
   "display-name": "org.apache.hyracks.dataflow.std.result.ResultWriterOperatorDescriptor[ODID:1]",
   "id": "ODID:1",
   "in-arity": 1,
   "java-class": "org.apache.hyracks.dataflow.std.result.ResultWriterOperatorDescriptor",
   "out-arity": 0,
   "partition-constraints": {
    "count": "1",
    "location": {"0": "asterix_nc1"}
   }
  },
  {
   "display-name": "org.apache.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor[ODID:2]",
   "id": "ODID:2",
   "in-arity": 0,
   "java-class": "org.apache.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor",
   "micro-operators": ["ets"],
   "out-arity": 1,
   "partition-constraints": {
    "count": "1",
    "location": {"0": "asterix_nc1"}
   }
  },
  {
   "display-name": "org.apache.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor[ODID:3]",
   "id": "ODID:3",
   "in-arity": 1,
   "java-class": "org.apache.hyracks.algebricks.runtime.operators.meta.AlgebricksMetaOperatorDescriptor",
   "micro-operators": ["stream-project [1]"],
   "out-arity": 1,
   "partition-constraints": {
    "count": "1",
    "location": {"0": "asterix_nc1"}
   }
  }
 ]
}
[PARTITION_COUNT(ODID:0) in CONSTANT[1:java.lang.Integer], PARTITION_COUNT(ODID:2) in CONSTANT[1:java.lang.Integer], PARTITION_LOCATION(ODID:1, 0) in CONSTANT[asterix_nc1:java.lang.String], PARTITION_LOCATION(ODID:0, 0) in CONSTANT[asterix_nc1:java.lang.String], PARTITION_LOCATION(ODID:3, 0) in CONSTANT[asterix_nc1:java.lang.String], PARTITION_LOCATION(ODID:2, 0) in CONSTANT[asterix_nc1:java.lang.String], PARTITION_COUNT(ODID:1) in CONSTANT[1:java.lang.Integer], PARTITION_COUNT(ODID:3) in CONSTANT[1:java.lang.Integer]]
[ { "DataverseName": "Metadata", "DataFormat": "org.apache.asterix.runtime.formats.NonTaggedDataFormat", "Timestamp": "Sun Aug 28 17:37:22 IST 2016", "PendingOp": 0 }
 ]