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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2016/09/20 04:58:20 UTC

[jira] [Assigned] (SPARK-17603) Utilize Hive-generated Statistics For Partitioned Tables

     [ https://issues.apache.org/jira/browse/SPARK-17603?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-17603:
------------------------------------

    Assignee: Apache Spark

> Utilize Hive-generated Statistics For Partitioned Tables
> --------------------------------------------------------
>
>                 Key: SPARK-17603
>                 URL: https://issues.apache.org/jira/browse/SPARK-17603
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.0.0, 2.1.0
>            Reporter: Xiao Li
>            Assignee: Apache Spark
>
> For non-partitioned tables, Hive-generated statistics are stored in table properties. However, for partitioned tables, Hive-generated statistics are stored in partition properties. Thus, we are unable to utilize the Hive-generated statistics for partitioned tables. 
> The statistics might not be gathered for all the partitions in Hive. For partial collection, we will not utilize the Hive-generated statistics.



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