ClickHouse/tests/queries/0_stateless/data_avro/references.avsc

{
    "type": "record",
    "name": "row",
    "fields": [
        {
            "name": "a",
            "type": {
                "name": "fixed_2",
                "type": "fixed",
                "size": 2
            }
        },
        {
            "name": "b",
            "type": {
                "type": "record",
                "name": "LongList",
                "fields": [
                    {
                        "name": "value",
                        "type": "long"
                    },
                    {
                        "name": "next",
                        "type": [
                            "null",
                            "LongList",
                            "fixed_2"
                        ]
                    }
                ]
            }
        },
        {
            "name": "c",
            "type": "fixed_2"
        }
    ]
}