Xiao Li created SPARK-17657:
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Summary: Disallow Users to Change Table Type
Key: SPARK-17657
URL: https://issues.apache.org/jira/browse/SPARK-17657
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.0.0, 2.1.0
Reporter: Xiao Li
Hive allows users to change the table type from `Managed` to `External` or from
`External` to `Managed` by altering table's property `EXTERNAL`. See the JIRA:
https://issues.apache.org/jira/browse/HIVE-1329
So far, Spark SQL does not correctly support it, although users can do it. Many
assumptions are broken in the implementation. Thus, this PR is to disallow
users to do it.
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