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https://issues.apache.org/jira/browse/SPARK-8141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Cheng Lian updated SPARK-8141:
------------------------------
    Affects Version/s: 1.4.0

> Precompute datatypes for partition columns and reuse it
> -------------------------------------------------------
>
>                 Key: SPARK-8141
>                 URL: https://issues.apache.org/jira/browse/SPARK-8141
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 1.4.0
>            Reporter: Liang-Chi Hsieh
>            Assignee: Liang-Chi Hsieh
>             Fix For: 1.4.1, 1.5.0
>
>
> spec.partitionColumns.map(_.dataType) re-runs for each Partition in 
> HadoopFsRelation. When there are many partitions, it costs too much 
> unnecessary time.



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