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https://issues.apache.org/jira/browse/HIVE-12753?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Heng Chen updated HIVE-12753:
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Attachment: HIVE-12753.patch
Make a simple patch on master. :)
> Improve performance of LazyBinaryColumnarSerDe for Text strings
> ---------------------------------------------------------------
>
> Key: HIVE-12753
> URL: https://issues.apache.org/jira/browse/HIVE-12753
> Project: Hive
> Issue Type: Bug
> Components: Serializers/Deserializers
> Affects Versions: 1.2.1
> Reporter: David Phillips
> Attachments: HIVE-12753.patch
>
>
> {{LazyBinaryColumnarSerDe}} needs to special case writing empty strings, but
> it does so by calling {{getPrimitiveJavaObject()}} rather than
> {{getPrimitiveWritableObject()}} on {{StringObjectInspector}}. If the object
> is {{Text}}, then this requires a conversion to a Java {{String}} just to get
> the length.
> Unfortunately, the best method to call depends on the object type (or the
> object inspector type). One solution is to call
> {{getPrimitiveWritableObject()}} if the object is an instance of {{Text}} or
> {{BytesWritable}}.
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