bdrillard edited a comment on issue #22878: [SPARK-25789][SQL] Support for Dataset of Avro URL: https://github.com/apache/spark/pull/22878#issuecomment-447359187 I agree with @gengliangwang, as far as I can see from my look at the external data source module, the original `DataFrame` support for Avro that used to be in Spark-Avro has been rolled into Spark-proper. This PR that @xuanyuanking has taken the time to drive and respond to would roll in the support I had written for `Dataset` of Avro, but that had never been committed to Spark-Avro (it sat in PR without review), I imagine for the same reason that @srowen mentions. Our users would no longer have any need for Spark-Avro after this PR. As far as I can tell, the entire Spark-Avro project would be subsumed by Spark after this. On the other note that @gengliangwang mentions, refactoring `InitializeAvroObject` to `NewInstance` is a bit tough, since it entails minor, passive changes to the `TreeNode` class, see [here](https://github.com/apache/spark/pull/21348/files#diff-eac5b02bb450a235fef5e902a2671254R361). I'm happy to submit a follow-up PR that cleans up the `Expression` if that's easier, but I'll leave that up to you and @xuanyuanking.
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