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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-1032) Extend POJO Field Selectors to Support Accessing Nested Objects
Date Sun, 05 Oct 2014 15:18:33 GMT

    [ https://issues.apache.org/jira/browse/FLINK-1032?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14159555#comment-14159555

ASF GitHub Bot commented on FLINK-1032:

Github user StephanEwen commented on the pull request:

    The TupeSerializer and the TupleComparators have pretty massive stand-alone tests. I could
not find something similar for the PojoSerializer.
    Check out the `AbstractGenericTypeSerializerTest`, on which the AvroSerializer and the
KryoSerializer build their tests.

> Extend POJO Field Selectors to Support Accessing Nested Objects
> ---------------------------------------------------------------
>                 Key: FLINK-1032
>                 URL: https://issues.apache.org/jira/browse/FLINK-1032
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Java API
>            Reporter: Aljoscha Krettek
>            Assignee: Robert Metzger
> Right now you can only use fields of the top-level object as key fields in groupings,
joins, and co-group. This should be extended to allow using nested fields. We have to be careful
with null fields, though.

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