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Posted to issues@spark.apache.org by "Wenchen Fan (Jira)" <ji...@apache.org> on 2021/04/06 08:31:00 UTC
[jira] [Assigned] (SPARK-34923) Metadata output should not always
be propagated
[ https://issues.apache.org/jira/browse/SPARK-34923?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wenchen Fan reassigned SPARK-34923:
-----------------------------------
Assignee: Karen Feng
> Metadata output should not always be propagated
> -----------------------------------------------
>
> Key: SPARK-34923
> URL: https://issues.apache.org/jira/browse/SPARK-34923
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 3.0.0
> Reporter: Karen Feng
> Assignee: Karen Feng
> Priority: Major
>
> Today, the vast majority of expressions uncritically propagate metadata output from their children. As a general rule, it seems reasonable that only expressions that propagate their children's output should also propagate their children's metadata output.
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