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https://issues.apache.org/jira/browse/HIVE-12011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14944256#comment-14944256
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Laljo John Pullokkaran commented on HIVE-12011:
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+1
> unable to create temporary table using CTAS if regular table with that name
> already exists
> ------------------------------------------------------------------------------------------
>
> Key: HIVE-12011
> URL: https://issues.apache.org/jira/browse/HIVE-12011
> Project: Hive
> Issue Type: Bug
> Reporter: Pengcheng Xiong
> Assignee: Pengcheng Xiong
> Attachments: HIVE-12011.01.patch
>
>
> CTAS temporary table query fails if regular table with the same name already
> exists.
> Steps to reproduce the issue:
> {noformat}
> hive> use dbtemptable;
> OK
> Time taken: 0.273 seconds
> hive> create table a(i int);
> OK
> Time taken: 0.297 seconds
> hive> create temporary table a(i int);
> OK
> Time taken: 0.165 seconds
> hive> create table b(i int);
> OK
> Time taken: 0.212 seconds
> hive> create temporary table b as select * from a;
> FAILED: SemanticException org.apache.hadoop.hive.ql.parse.SemanticException:
> Table already exists: dbtemptable.b
> hive> create table c(i int);
> OK
> Time taken: 0.264 seconds
> hive> create temporary table b as select * from c;
> FAILED: SemanticException org.apache.hadoop.hive.ql.parse.SemanticException:
> Table already exists: dbtemptable.b
> {noformat}
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