[ https://issues.apache.org/jira/browse/SPARK-27602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16895737#comment-16895737
]
angerszhu commented on SPARK-27602:
-----------------------------------
Seems in hive 1.2.1, we can't get true partition level stats too.
> SparkSQL CBO can't get true size of partition table after partition pruning
> ---------------------------------------------------------------------------
>
> Key: SPARK-27602
> URL: https://issues.apache.org/jira/browse/SPARK-27602
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: angerszhu
> Priority: Major
> Attachments: image-2019-05-05-11-46-41-240.png
>
>
> When I want to do extract a cost of one sql for myself's cost framework, I found that
CBO can't get true size of partition table since when partition pruning is true. we just
need corresponding partition's size. It just use the tables's statistic.
--
This message was sent by Atlassian JIRA
(v7.6.14#76016)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org
|