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https://issues.apache.org/jira/browse/HIVE-335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13647542#comment-13647542
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Michael Koehnlein commented on HIVE-335:
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This would be useful for me, too. We have data on HDFS that belongs to a system
user account, and our "normal" users should be able analyze it as an external
table. As it is now, the users would need HDFS write permissions on the data
directory if they want to create an external table for that directory
themselves, although they really only need read permissions. Of course that's
not a big obstacle, since we can just let the system user create the external
table. It certainly would be nice to get pure read access via external tables,
though.
> External Tables should have the option to be marked Read Only
> -------------------------------------------------------------
>
> Key: HIVE-335
> URL: https://issues.apache.org/jira/browse/HIVE-335
> Project: Hive
> Issue Type: Improvement
> Components: Metastore, Query Processor
> Reporter: Richard Lee
>
> When creating an External Table, it'd be awesome to have the option of NOT
> allowing writes to it (disallow any INSERTs or if hive ever allows UPDATEs).
> Adding and Dropping Partitions should still be allowed.
> This will enable hive to "play well" with external data stores other than
> hdfs where data should be non-maleable.
> I'd recomend the following syntax, which applies ONLY to external tables:
> CREATE EXTERNAL [READONLY] TABLE ...
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