[
https://issues.apache.org/jira/browse/SPARK-33707?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Apache Spark reassigned SPARK-33707:
------------------------------------
Assignee: (was: Apache Spark)
> Support multiple types of function partition pruning on hive metastore
> ----------------------------------------------------------------------
>
> Key: SPARK-33707
> URL: https://issues.apache.org/jira/browse/SPARK-33707
> Project: Spark
> Issue Type: Sub-task
> Components: SQL
> Affects Versions: 3.2.0
> Reporter: chenliang
> Priority: Major
>
> For the current version, partition pruning support is limited to the scene.
> Let's look at the implementation of the source code:
>
> [https://github.com/apache/spark/blob/031c5ef280e0cba8c4718a6457a44b6cccb17f46/sql/hive/src/main/scala/org/apache/spark/sql/hive/client/HiveShim.scala#L840]
> Hive getPartitionsByFilter() takes a string that represents partition
> predicates like "str_key=\"value\" and int_key=1 ...", but for normal
> functions like concat/concat_ws/substr,it does not support.
> The defect can cause a large number of partitions to be scanned which will
> increase the amount of data involved in the calculation and increase the
> pressure of service of metastore.
>
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
