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From "Jason Dere (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-17611) Add new LazyBinary SerDe for faster writes
Date Wed, 27 Sep 2017 23:55:02 GMT

     [ https://issues.apache.org/jira/browse/HIVE-17611?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason Dere updated HIVE-17611:
------------------------------
       Resolution: Fixed
    Fix Version/s: 3.0.0
           Status: Resolved  (was: Patch Available)

committed to master

> Add new LazyBinary SerDe for faster writes
> ------------------------------------------
>
>                 Key: HIVE-17611
>                 URL: https://issues.apache.org/jira/browse/HIVE-17611
>             Project: Hive
>          Issue Type: Improvement
>          Components: Serializers/Deserializers
>            Reporter: Jason Dere
>            Assignee: Jason Dere
>             Fix For: 3.0.0
>
>         Attachments: HIVE-17611.1.patch
>
>
> LazyBinarySerDe.serialize() ends up making getCategory()/getPrimitiveCategory() calls
for every column of every row. Tried some simple tests to eliminate these calls for the non-vectorized
version, this looks like it speeds up the writes by ~3x.
> Adding a LazyBinarySerDe2 class with this new implementation.



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