mattisonchao commented on pull request #13094:
URL: https://github.com/apache/pulsar/pull/13094#issuecomment-998382704


   > @congbobo184
   > 
   > I think i got somethings wrong.
   > 
   > When the consumer use `AUTO_CONSUME`, an error will be generated if the 
consumer does not have the same Protobuf class.
   > 
   > Now I have tried some methods:
   > 
   > 1. Use Avro to support this feature. (Although `GenericRecord` can be 
built, you will get an error when read the value, because we use Protobuf 
serialization, but use Avro to deserialize).
   > 2. Use Protobuf Descriptor. ( Since only `FieldDescriptor` is stored 
during Serialization, Protobuf Descriptor cannot be generate by this data. )
   > 
   > 
![image](https://user-images.githubusercontent.com/74767115/145760019-dae73a56-cb24-421f-9f4b-d666443a5c7a.png)
   > 
   > Could you give me more advice for this PR :)
   
   @eolivelli 
   
   Would you have time to help me with this problem ?


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