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https://issues.apache.org/jira/browse/BEAM-5077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16569967#comment-16569967
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Vaclav Plajt commented on BEAM-5077:
------------------------------------
pull request: https://github.com/seznam/beam/pull/16
> Use type informations about output, key and values from operators to set
> coders
> -------------------------------------------------------------------------------
>
> Key: BEAM-5077
> URL: https://issues.apache.org/jira/browse/BEAM-5077
> Project: Beam
> Issue Type: Sub-task
> Components: dsl-euphoria
> Reporter: Vaclav Plajt
> Assignee: Vaclav Plajt
> Priority: Major
>
> Operators can (optionally) carry `TypeDescriptor` of its output, key and
> value types. These can be used to determine right coders for `PCollection`s
> during translation to Beam API.
> Another enhancements of coders resolution are desired:
> * Allow API user to disable use of `KryoCoder` as fallback coder.
> * Every automatically created `KryoCoder` needs to respects classes
> registrations provided by user.
> * Automate creation of 'PairCoder' whenever needed.
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