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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-2633) OptionTypeInfo does not have proper equals and hashCode method
Date Tue, 08 Sep 2015 15:04:45 GMT

    [ https://issues.apache.org/jira/browse/FLINK-2633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14734952#comment-14734952

ASF GitHub Bot commented on FLINK-2633:

Github user fhueske commented on the pull request:

    Yes, I think that is necessary. FLINK-2633 is about a bug in `OptionTypeInfo`. It is not
about the general TypeInformation interface which is not broken, but could (and should) be
improved. We should create a new JIRA (changing TypeInfo breaks the public API) and continue
the discussion of changing the API over there.

> OptionTypeInfo does not have proper equals and hashCode method
> --------------------------------------------------------------
>                 Key: FLINK-2633
>                 URL: https://issues.apache.org/jira/browse/FLINK-2633
>             Project: Flink
>          Issue Type: Bug
>            Reporter: Till Rohrmann
>            Assignee: Till Rohrmann
> The {{OptionTypeInfo}} does not have a proper {{equals}} and {{hashCode}} definition.
As a consequence, types which contain an option type won't be detected to be equal even though
the element type of the option is identical. 
> This can cause problems when you try to union two data sets of type {{DataSet[Option[Int]]}},
for example.

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