{
    "_yql_row_spec" = {
        "UniqueKeys"=%true;
        "SortMembers"=["Group"; "Name"];
        "SortedBy"=["Group"; "Name"];
        "SortDirections"=[1; 1];
        "SortedByTypes"=[["DataType";"Uint64"]; ["DataType";"String"]];
        "Type" = [
            "StructType";
            [
                [
                    "Group";
                    [
                        "DataType";
                        "Uint64"
                    ]
                ];
                [
                    "Name";
                    [
                        "DataType";
                        "String"
                    ]
                ];
                [
                    "Amount";
                    [
                        "DataType";
                        "Int64"
                    ]
                ];
                [
                    "Comment";
                    [
                        "DataType";
                        "String"
                    ]
                ]
            ]
        ]
    }
}