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https://issues.apache.org/jira/browse/SPARK-33507?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17264608#comment-17264608
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Chao Sun edited comment on SPARK-33507 at 1/14/21, 5:23 AM:
------------------------------------------------------------

Thanks [~hyukjin.kwon]. From my side, there is no regression. Although I feel 
SPARK-34052 is a bit important since it concerns correctness. I'n working on a 
fix but got delayed by a few other issues found along the way :(.

The issue has been there for a long time though so I'm fine moving this to the 
next release.
 

 


was (Author: csun):
Thanks [~hyukjin.kwon]. From my side, there is no regression. Although I feel 
SPARK-34052 is a bit important since it concerns correctness. I'n working on a 
fix but got delayed by a few other issues found during the process :(

> Improve and fix cache behavior in v1 and v2
> -------------------------------------------
>
>                 Key: SPARK-33507
>                 URL: https://issues.apache.org/jira/browse/SPARK-33507
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 3.1.0
>            Reporter: Chao Sun
>            Priority: Critical
>
> This is an umbrella JIRA to track fixes & improvements for caching behavior 
> in Spark datasource v1 and v2, which includes:
>   - fix existing cache behavior in v1 and v2.
>   - fix inconsistent cache behavior between v1 and v2
>   - implement missing features in v2 to align with those in v1.



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