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Posted to issues@spark.apache.org by "Xiao Li (JIRA)" <ji...@apache.org> on 2016/09/20 04:59:20 UTC
[jira] [Updated] (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 ]
Xiao Li updated SPARK-17603:
----------------------------
Issue Type: Improvement (was: Bug)
> Utilize Hive-generated Statistics For Partitioned Tables
> --------------------------------------------------------
>
> Key: SPARK-17603
> URL: https://issues.apache.org/jira/browse/SPARK-17603
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.0.0, 2.1.0
> Reporter: Xiao Li
>
> 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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