shibd commented on code in PR #15622:
URL: https://github.com/apache/pulsar/pull/15622#discussion_r1156018535
##########
pulsar-client/src/main/java/org/apache/pulsar/client/impl/MessageImpl.java:
##########
@@ -382,23 +384,28 @@ public Optional<Schema<?>> getReaderSchema() {
if (schema == null) {
return Optional.empty();
}
+ byte[] schemaVersion = getSchemaVersion();
+ if (schemaVersion == null) {
+ return Optional.of(schema);
Review Comment:
This is a breaking change.
If the producer uses `BYTES` schema(It should be all `Primitive` type will
happen), and the consumer use the `AutoConsumer` schema.
```
Schema schema = msg.msg.getReaderSchema().get();
```
- Before 2.9.3, the schema is `ByteSchema` object.
- After 2.9.3, the schema is `AutoConsumerSchema` object.
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