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https://issues.apache.org/jira/browse/HIVE-956?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13041502#comment-13041502
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Krishna Kumar commented on HIVE-956:
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Initial patch for lazy binary columnar serde. Reuses elements of columnar serde
and lazy binary serde.
I used 0-length value for null indicator for all types (columnar uses a special
sequence, lazybinary uses a byte for every 8 fields), but this meant that to
distinguish empty strings, I need to encode string length as part of the
serialized data, which then causes an additional cost for every string. Because
of this, the results of this serialization did not impress on a specific
dataset I used for testing. Thoughts?
> Add support of columnar binary serde
> ------------------------------------
>
> Key: HIVE-956
> URL: https://issues.apache.org/jira/browse/HIVE-956
> Project: Hive
> Issue Type: New Feature
> Reporter: He Yongqiang
> Assignee: Krishna Kumar
> Attachments: HIVE.956.patch.0
>
>
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