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Posted to issues@spark.apache.org by "Juliusz Sompolski (JIRA)" <ji...@apache.org> on 2017/03/14 12:56:41 UTC

[jira] [Created] (SPARK-19948) Document that saveAsTable uses catalog as source of truth for table existence.

Juliusz Sompolski created SPARK-19948:
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             Summary: 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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