[jira] [Commented] (FLINK-6764) Deduplicate stateless TypeSerializers when serializing composite TypeSerializers

["ASF GitHub Bot (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-6764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16032839#comment-16032839 ] 

ASF GitHub Bot commented on FLINK-6764:
---------------------------------------

Github user tzulitai commented on the issue:

    https://github.com/apache/flink/pull/4026
  
    Thanks a lot for the helpful review @StefanRRichter. I've addressed your comments.
    
    This PR also needs one more additional change for backwards compatibility with 1.3.0 before I'll merge it (will ping you on the follow-up).


> Deduplicate stateless TypeSerializers when serializing composite TypeSerializers
> --------------------------------------------------------------------------------
>
>                 Key: FLINK-6764
>                 URL: https://issues.apache.org/jira/browse/FLINK-6764
>             Project: Flink
>          Issue Type: Improvement
>          Components: Type Serialization System
>    Affects Versions: 1.3.0, 1.4.0
>            Reporter: Till Rohrmann
>            Assignee: Tzu-Li (Gordon) Tai
>
> Composite type serializer, such as the {{PojoSerializer}}, could be improved by deduplicating stateless {{TypeSerializer}} when being serialized. This would decrease their serialization size.



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