Jozef Vilcek created BEAM-11091:
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             Summary: HadoopFormatIO should allow to specify coders
                 Key: BEAM-11091
                 URL: https://issues.apache.org/jira/browse/BEAM-11091
             Project: Beam
          Issue Type: Improvement
          Components: io-java-hadoop-format
    Affects Versions: 2.24.0
            Reporter: Jozef Vilcek
            Assignee: Jozef Vilcek


HadoopFormatIO does allow only to pass in type descriptors for key and value 
and those are then resolved to Coder via CoderRegistry.

We did find this restrictive after 
https://issues.apache.org/jira/browse/BEAM-9569
which makes it impossible to emit Row out of the source.

Easy solution I see can be to allow set Coder directly and bypass the 
resolution against registry in that case.



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