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From "Zheng Shao (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HIVE-270) Add a lazy-deserialized SerDe for space and cpu efficient serialization of rows with primitive types
Date Wed, 11 Feb 2009 04:53:02 GMT

     [ https://issues.apache.org/jira/browse/HIVE-270?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Zheng Shao updated HIVE-270:
----------------------------

    Attachment: HIVE-270.3.patch

Added the code to parse byte, short, int, long without doing UTF-8 decoding.
Added test cases (all passed).

Does not include the fix to existing testcase output. The only change is the name of the SerDe
and that part can be automatically generated by "ant test -Doverwrite=true".


> Add a lazy-deserialized SerDe for space and cpu efficient serialization of rows with
primitive types
> ----------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-270
>                 URL: https://issues.apache.org/jira/browse/HIVE-270
>             Project: Hadoop Hive
>          Issue Type: New Feature
>          Components: Serializers/Deserializers
>            Reporter: Zheng Shao
>            Assignee: Zheng Shao
>         Attachments: HIVE-270.1.patch, HIVE-270.3.patch
>
>
> We want to add a lazy-deserialized SerDe for space and cpu efficient serialization of
rows with primitive types.
> This SerDe will share the same format as MetadataTypedColumnsetSerDe/TCTLSeparatedProtocol
to be backward compatible.
> This SerDe will be used to replace the default table SerDe, and the SerDe used to communicate
with user scripts.
> For simplicity, we don't plan to support nested structure with this SerDe.

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