Rui Li created SPARK-25085:
------------------------------

             Summary: Insert overwrite a non-partitioned table can delete table 
folder
                 Key: SPARK-25085
                 URL: https://issues.apache.org/jira/browse/SPARK-25085
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.3.0
            Reporter: Rui Li


When inserting overwrite a data source table, Spark firstly deletes all the 
partitions. For non-partitioned table, it will delete the table folder, which 
is wrong because table folder may contain information like ACL entries.



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