{
    "schema"=<"strict"=%true; "unique_keys"=%false>[
        {"name"="_yql_column_0";"type"="string";"required"=%true;"sort_order"="ascending"};
        {"name"="key";"type"="string";"required"=%true;"sort_order"="ascending"};
        {"name"="subkey";"type"="string";"required"=%true};
        {"name"="value";"type"="string";"required"=%true};
    ];
    "_yql_row_spec"={
        "TypePatch"=["StructType";[]];
        "SortMembers"=[];
        "SortedBy"=["_yql_column_0";"key"];
        "SortDirections"=[1; 1];
        "SortedByTypes"=[["DataType";"String"];["DataType";"String"]];
    }
}