gengliangwang commented on issue #24405: [SPARK-27506][SQL] Allow 
deserialization of Avro data using compatible schemas
URL: https://github.com/apache/spark/pull/24405#issuecomment-521688184
 
 
   > cc @dbtsai @gengliangwang do we have this feature in the avro data source? 
e.g. can we read avro files with a different but compatible schema?
   
   Currently we don't have such feature for Avro data source. 
   The file reading always splits the file into partitions and read with one 
unify partition. To support such feature we will have to know the writer schema 
of each file.
   

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