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https://issues.apache.org/jira/browse/HIVE-24920?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17342449#comment-17342449
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Zoltan Haindrich commented on HIVE-24920:
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this could also be implemented as an option; but i think this will not solve
the problem fully: what should happen if you already have a directory with that
name?
because there is no guarantee that test_renamed doesn't exists....
> TRANSLATED_TO_EXTERNAL tables may write to the same location
> ------------------------------------------------------------
>
> Key: HIVE-24920
> URL: https://issues.apache.org/jira/browse/HIVE-24920
> Project: Hive
> Issue Type: Bug
> Reporter: Zoltan Haindrich
> Assignee: Zoltan Haindrich
> Priority: Major
> Labels: pull-request-available
> Time Spent: 40m
> Remaining Estimate: 0h
>
> {code}
> create table t (a integer);
> insert into t values(1);
> alter table t rename to t2;
> create table t (a integer); -- I expected an exception from this command
> (location already exists) but because its an external table no exception
> insert into t values(2);
> select * from t; -- shows 1 and 2
> drop table t2; -- wipes out data location
> select * from t; -- empty resultset
> {code}
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