Konstantinos Kallas commented on HIVE-14763:

I would like to try to tackle the issue but i do not know if i should just 
assign it to me.
PS. It is the first issue i report so i am afraid i might not have exactly 
followed the guidelines . Please be kind :)

> Exchange Partition with a table that already contains it
> --------------------------------------------------------
>                 Key: HIVE-14763
>                 URL: https://issues.apache.org/jira/browse/HIVE-14763
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>            Reporter: Konstantinos Kallas
>            Priority: Minor
> The EXCHANGE PARTITION command fails to execute if the partition already 
> exists in the target table. However this is not the expected result from a 
> command named *EXCHANGE* partition. 
> +Proposed Improvement+
> Change the command to really exchange the partition between the target and 
> the source table, meaning that after it the source table should have the 
> destination table partition and vice versa.
> [Documentation EXCHANGE PARTITION | 
> https://cwiki.apache.org/confluence/display/Hive/Exchange+Partition]

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