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https://issues.apache.org/jira/browse/HIVE-270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12673797#action_12673797
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Zheng Shao commented on HIVE-270:
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This transaction is aimed for better performance with the same semantics.
For 1, DynamicSerDe with TCTLSeparatedProtocol has been doing the same thing
for a long time.
Let's open another jira if this is needed?
For 2. I've opened a new jira HIVE-292 for it. Let's do it step-by-step to
reduce risks.
> 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, HIVE-270.4.patch,
> HIVE-270.5.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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