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Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2016/05/18 11:23:12 UTC

[jira] [Resolved] (SPARK-15240) Use buffer variables to improve buffer serialization/deserialization in TungstenAggregate

     [ https://issues.apache.org/jira/browse/SPARK-15240?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean Owen resolved SPARK-15240.
-------------------------------
    Resolution: Won't Fix

> Use buffer variables to improve buffer serialization/deserialization in TungstenAggregate
> -----------------------------------------------------------------------------------------
>
>                 Key: SPARK-15240
>                 URL: https://issues.apache.org/jira/browse/SPARK-15240
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Liang-Chi Hsieh
>
> We do serialization/deserialization on aggregation buffer in TungstenAggregate for each aggregation function. It wastes time on duplicate serde for the same grouping keys. We can optimize it.



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