sijie opened a new issue #3742: AvroSchema should be constructing using writer schema and reader schema URL: https://github.com/apache/pulsar/issues/3742 **Is your feature request related to a problem? Please describe.** Currently POJO Avro Schema is using one schema for both its writer schema and reader schema. This implementation doesn't work well with BC story. A better approach is: for producer: we should use the user supplied schema as writer schema, and use the schema stored at broker as reader schema to construct the AvroSchema. In this way, Avro can do the BC at client side to make sure the produced message is compatible with broker side. for consumer: we should use the user supplied schema as reader schema, and use the schema stored at broker as writer schema to construct AvroSchema. **Describe the solution you'd like** The solution is described above as `a better approach`. **Describe alternatives you've considered** N/A **Additional context** N/A
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