HyukjinKwon edited a comment on issue #22878: [SPARK-25789][SQL] Support for 
Dataset of Avro
URL: https://github.com/apache/spark/pull/22878#issuecomment-473126770
   Yes, I was referring both untyped APIs. So, the point of adding this API is, 
1. typed one (therefore it might be able to use some Avro APIs as well) and 2. 
presumably better performance, got it.
   I was wondering how much it's worth considering the codes being added here 
and maintenance overhead (it adds around 1000 lines). Also, presumably this can 
be worked around via RDD APIs.
   What APIs are missing comparing to the set of Avro APIs that might be able 
to be used within Apache Spark?
   Some typed APIs like https://github.com/apache/spark/pull/23763 were 
deprecated because it virtually means we should add all typed versions of 
untyped versions. For instance, I currently don't think we should add other 
format compatible encoders afterward although we can support a plugin approach.

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