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https://issues.apache.org/jira/browse/SPARK-6195?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheng Lian resolved SPARK-6195.
-------------------------------
Resolution: Fixed
Fix Version/s: 1.4.0
Issue resolved by pull request 4938
[https://github.com/apache/spark/pull/4938]
> Specialized in-memory column type for decimal
> ---------------------------------------------
>
> Key: SPARK-6195
> URL: https://issues.apache.org/jira/browse/SPARK-6195
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 1.1.1, 1.3.0, 1.2.1
> Reporter: Cheng Lian
> Assignee: Cheng Lian
> Fix For: 1.4.0
>
>
> When building in-memory columnar representation, decimal values are currently
> serialized via a generic serializer, which is unnecessarily slow. Since
> decimals are actually annotated long values, we should add a specialized
> decimal column type to speed up in-memory decimal serialization.
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