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From "Feng Peng (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 Thu, 30 Aug 2012 00:02:07 GMT

    [ https://issues.apache.org/jira/browse/HIVE-3163?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13444555#comment-13444555
] 

Feng Peng commented on HIVE-3163:
---------------------------------

Cool. I guess our use case is kind of different from yours. We already have a ProtobufDeserializer
in Elephantbird, which is currently using the ReflectionObjectInspector and thus getting a
different set of fields from the original protobuf def. Since Elephantbird already extracts
the field names from the protobuf objects, for the time being we will just write an OI on
top of it, and replace it when the Hive ProtbobufDeserializer is finalized.

Thanks,
Feng
                
> 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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