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https://issues.apache.org/jira/browse/SPARK-22384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wenchen Fan resolved SPARK-22384.
---------------------------------
Resolution: Fixed
Fix Version/s: 2.4.0
Issue resolved by pull request 19602
[https://github.com/apache/spark/pull/19602]
> Refine partition pruning when attribute is wrapped in Cast
> ----------------------------------------------------------
>
> Key: SPARK-22384
> URL: https://issues.apache.org/jira/browse/SPARK-22384
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 2.2.0
> Reporter: jin xing
> Assignee: jin xing
> Priority: Major
> Fix For: 2.4.0
>
>
> Sql below will get all partitions from metastore, which put much burden on
> metastore;
> {{CREATE TABLE test (value INT) PARTITIONED BY (dt STRING)}}
> {{SELECT * from test where dt=2017}}
> The reason is that the the analyzed attribute {{dt}} is wrapped in {{Cast}}
> and {{HiveShim}} fails to generate a proper partition filter.
> Could we fix this? Sql like {{SELECT * from test where dt=2017}} is common in
> my warehouse.
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