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From "Edward Capriolo (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-3163) enhance Deserialize to add a method to show whether the column names are derived from the Deserializer
Date Fri, 31 Aug 2012 13:43:07 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13445929#comment-13445929
] 

Edward Capriolo commented on HIVE-3163:
---------------------------------------

I member looking at elephant bird aupport. Iirc it required the user to generate an addition
class . I took this approach because I wanted hive to work with the protobuf class directly.
I also figured that somehow the reflection inspector would have something that did not work
the way I wanted so coding the entire piece from scratch was very attractive to me. If your
data is in a different format you can likely reuse almost all of the code, you just have to
customize the input format.
                
> enhance Deserialize to add a method to show whether the column names are derived from
the Deserializer 
> -------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-3163
>                 URL: https://issues.apache.org/jira/browse/HIVE-3163
>             Project: Hive
>          Issue Type: Bug
>          Components: Serializers/Deserializers
>            Reporter: Namit Jain
>
> There are some serdes: ThriftDeserializer and AvroDeserilizer which 
> contain the column information. I mean, the user does not need to specify the
> column schema.
> Currently, this information is hard-coded. SerDeUtils has a method to get this
> information from the name of the serde.
> Ideally, Deserializer should be extended to add this method.

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