{
    head:{
        type:"APACHE_DRILL_PHYSICAL",
        version:"1",
        generator:{
            type:"manual"
        }
    },
    graph:[
        {
            @id:1,
            pop:"mock-scan",
            url: "http://apache.org",
            entries:[
                {records: 100000, types: [
                  {name: "blue", type: "INT", mode: "REQUIRED"},
                  {name: "green", type: "INT", mode: "REQUIRED"}
                ]},
              {records: 100000, types: [
                {name: "blue", type: "INT", mode: "REQUIRED"},
                {name: "green", type: "INT", mode: "REQUIRED"}
              ]}
            ]
        },
        {
            @id: 2,
            pop: "project",
            child: 1,
            exprs: [
              { ref: "blue", expr: "randomBigInt(1000)" }
            ]
        },
        {
            @id:3,
            child: 2,
            pop:"top-n",
            orderings: [
              {expr: "blue"}
            ],
            limit: 100
        },
        {
            @id:4,
            child: 3,
            pop:"selection-vector-remover"
        },
        {
            @id: 5,
            child: 4,
            pop: "screen"
        }
    ]
}