{
    head:{
        type:"APACHE_DRILL_PHYSICAL",
        version:"1",
        generator:{
            type:"manual"
        }
    },
	graph:[
        {
                  @id:1,
                  pop:"fs-scan",
                  format: {type: "json"},
                  storage:{type: "file", connection: "file:///"},
                  files:["#{DATA_FILE}"]
         },
        {
            @id:2,
            child: 1,
            pop:"external-sort",
            orderings: [
              {expr: "a"}
            ]
        },
        {
            @id:3,
            child: 2,
            pop:"window",
            within: [
              { ref: "a", expr: "a" }
            ],
            aggregations: [
              { ref: "cnt", expr:"count(1)" },
              { ref: "sum", expr:"sum(b)" }
            ]
        },
        {
            @id: 4,
            child: 3,
            pop: "screen"
        }
    ]
}