boyuanzz commented on a change in pull request #12806:
URL: https://github.com/apache/beam/pull/12806#discussion_r487310176
##########
File path:
sdks/java/io/google-cloud-platform/src/main/java/org/apache/beam/sdk/io/gcp/pubsub/PubsubIO.java
##########
@@ -1012,6 +1012,8 @@ public PDone expand(PCollection<T> input) {
case UNBOUNDED:
return input
.apply(MapElements.into(new TypeDescriptor<PubsubMessage>()
{}).via(getFormatFn()))
+ // TODO(BEAM-10869): Also plump through
PubsubMessageWithAttributesCoder if needed.
+ .setCoder(PubsubMessagePayloadOnlyCoder.of())
Review comment:
I misunderstood what PR12760 does. Can you explain more about "we don't
use any of the other attributes from the message"? It seems like both
`PubsubMessage` in python and java contain 'attribute' map.
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