presto-record-decoder/src/main/java/io/prestosql/decoder/avro/AvroColumnDecoder.java/AvroColumnDecoder/ObjectValueProvider
class AvroColumnDecoder:        public ObjectValueProvider(Object value, Type columnType, String columnName)
        {
            this.value = value;
            this.columnType = columnType;
            this.columnName = columnName;
        }