{
  "head" : {
    "version" : 1,
    "generator" : {
      "type" : "org.apache.drill.exec.planner.logical.DrillImplementor",
      "info" : ""
    },
    "type" : "APACHE_DRILL_PHYSICAL",
    "resultMode" : "EXEC"
  },
  graph:[
    {
        @id:1,
        pop:"fs-scan",
        format: {type: "json"},
        storage:{type: "file", connection: "file:///"},
        files:["#{TEST_FILE_1}"]
    },
    {
        @id:2,
        pop:"fs-scan",
        format: {type: "json"},
        storage:{type: "file", connection: "file:///"},
        files:["#{TEST_FILE_2}"]
    },
    {
        "pop" : "project",
        "@id" : 3,
        "exprs" : [ {
          "ref" : "A",
          "expr" : "A"
        },
        { "ref" : "CCOL", "expr" : "C" }
        ],

        "child" : 1
    },
    {
        "pop" : "project",
        "@id" : 4,
        "exprs" : [ {
          "ref" : "B",
          "expr" : "B"
        },
        { "ref" : "DCOL", "expr" : "D" }
        ],

        "child" : 2
    },
    {
        @id: 5,
        right: 3,
        left: 4,
        pop: "hash-join",
        conditions: [ {relationship: "==", left: "B", right: "A"} ],
        joinType : "INNER"
    },
    {
        @id: 6,
        child: 5,
        pop: "screen"
     }
  ]
}