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From "Wenchen Fan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-15140) ensure input object of encoder is not null
Date Sun, 22 May 2016 00:01:20 GMT

    [ https://issues.apache.org/jira/browse/SPARK-15140?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15295313#comment-15295313
] 

Wenchen Fan commented on SPARK-15140:
-------------------------------------

I'm a little worried about supporting null input object here, what should the serialized row
be? a null row or a row with all fields null?

> ensure input object of encoder is not null
> ------------------------------------------
>
>                 Key: SPARK-15140
>                 URL: https://issues.apache.org/jira/browse/SPARK-15140
>             Project: Spark
>          Issue Type: Improvement
>            Reporter: Wenchen Fan
>
> Current we assume the input object for encoder won't be null, but we don't check it.
For example, in 1.6 `Seq("a", null).toDS.collect` will throw NPE, in 2.0 this will return
Array("a", null).
> We should define this behaviour more clearly.



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