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Posted to issues@spark.apache.org by "Apache Spark (Jira)" <ji...@apache.org> on 2022/10/21 10:07:00 UTC
[jira] [Commented] (SPARK-40868) Avoid introducing too many partitions when bucketed scan disabled by sql planner
[ https://issues.apache.org/jira/browse/SPARK-40868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17622178#comment-17622178 ]
Apache Spark commented on SPARK-40868:
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User 'xingchaozh' has created a pull request for this issue:
https://github.com/apache/spark/pull/38330
> Avoid introducing too many partitions when bucketed scan disabled by sql planner
> --------------------------------------------------------------------------------
>
> Key: SPARK-40868
> URL: https://issues.apache.org/jira/browse/SPARK-40868
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.4.0
> Reporter: Xingchao, Zhang
> Priority: Major
>
> For bucket tables with huge size, lots of partitions maybe generated if bucketed scan disabled by sql planner. We can add one limit(default as BUCKETING_MAX_BUCKETS) to reduce the partitions for non-bucketed scan to avoid too many tasks introduced in single stage.
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