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From "Jianshi Huang (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-6195) Specialized in-memory column type for decimal
Date Tue, 17 Mar 2015 17:09:39 GMT

    [ https://issues.apache.org/jira/browse/SPARK-6195?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14365549#comment-14365549
] 

Jianshi Huang commented on SPARK-6195:
--------------------------------------

Like this optimization! :)

Jianshi

> 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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