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https://issues.apache.org/jira/browse/SPARK-20703?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16009978#comment-16009978
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Tejas Patil commented on SPARK-20703:
-------------------------------------

for dynamic partitioned tables, number of partitions produced could also be a 
good metric to track.

> Add an operator for writing data out
> ------------------------------------
>
>                 Key: SPARK-20703
>                 URL: https://issues.apache.org/jira/browse/SPARK-20703
>             Project: Spark
>          Issue Type: New Feature
>          Components: SQL
>    Affects Versions: 2.2.0
>            Reporter: Reynold Xin
>
> We should add an operator for writing data out. Right now in the explain plan 
> / UI there is no way to tell whether a query is writing data out, and also 
> there is no way to associate metrics with data writes. It'd be tremendously 
> valuable to do this for adding metrics and for visibility.



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