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From "Apache Spark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (SPARK-19948) Document that saveAsTable uses catalog as source of truth for table existence.
Date Tue, 14 Mar 2017 12:58:41 GMT

    [ https://issues.apache.org/jira/browse/SPARK-19948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15924125#comment-15924125
] 

Apache Spark commented on SPARK-19948:
--------------------------------------

User 'juliuszsompolski' has created a pull request for this issue:
https://github.com/apache/spark/pull/17289

> Document that saveAsTable uses catalog as source of truth for table existence.
> ------------------------------------------------------------------------------
>
>                 Key: SPARK-19948
>                 URL: https://issues.apache.org/jira/browse/SPARK-19948
>             Project: Spark
>          Issue Type: Documentation
>          Components: Documentation
>    Affects Versions: 2.1.0
>            Reporter: Juliusz Sompolski
>
> It is quirky behaviour that saveAsTable to e.g. a JDBC source with SaveMode other than
Overwrite will nevertheless overwrite the table in the external source,if that table was not
a catalog table.



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