{
    "_yql_row_spec" = {
        "Type" = [
            "StructType";
            [
                [
                    "fdatetime1";
                    [
                        "DataType";
                        "String"
                    ]
                ];
                [
                    "fdatetime2";
                    [
                        "DataType";
                        "String"
                    ]
                ];
                [
                    "fdatetime3";
                    [
                        "DataType";
                        "String"
                    ]
                ];
                [
                    "fdatetime4";
                    [
                        "DataType";
                        "String"
                    ]
                ];
                [
                    "frfc822";
                    [
                        "DataType";
                        "String"
                    ]
                ];
                [
                    "fiso8601";
                    [
                        "DataType";
                        "String"
                    ]
                ];
                [
                    "fhttp";
                    [
                        "DataType";
                        "String"
                    ]
                ];
                [
                    "fx509";
                    [
                        "DataType";
                        "String"
                    ]
                ]
            ]
        ]
    }
}