Function from_avro_datum 

pub fn from_avro_datum<R: Read>(
    writer_schema: &Schema,
    reader: &mut R,
    reader_schema: Option<&Schema>,
) -> AvroResult<Value>

👎Deprecated since 0.22.0:

Use GenericDatumReader instead

Deprecated.

This is equivalent to

GenericDatumReader::builder(writer_schema)
   .maybe_reader_schema(reader_schema)
   .build()?
   .read_value(reader)

Decode a Value encoded in Avro format given its Schema and anything implementing io::Read to read from.

In case a reader Schema is provided, schema resolution will also be performed.

NOTE This function has a quite small niche of usage and does NOT take care of reading the header and consecutive data blocks; use Reader if you don’t know what you are doing, instead.