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[jira] [Created] (HIVE-19526) Exchange partition not copying data across S3 buckets


David Malinge created HIVE-19526:
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             Summary: Exchange partition not copying data across S3 buckets
                 Key: HIVE-19526
                 URL: https://issues.apache.org/jira/browse/HIVE-19526
             Project: Hive
          Issue Type: Bug
    Affects Versions: 2.3.0
            Reporter: David Malinge


Data is not copied when exchanging partition between two tables in different buckets. Only the metadata is copied over.

Assuming we have a partitioned table "table1" in s3://myBucket/table1 (I don't think schemas matter in that case so I will just omit them), my code looks like this:

 
{code:java}
create table table2 like table1 location 's3://anotherBucket/table2';
alter table table2 exchange partition (mypartition='partition1') with table table1;{code}
 

The behavior is the following:
 * no error e.g. "No rows affected (1.194 seconds)"
 * old partition metadata with provided key removed from table1
 * new partition metadata with the provided key created properly in the table2
 * data still in s3://myBucket/table1/mypartition=partition1

 It works as expected when using the exact same code but with table2 located in the same bucket as table1.

I have not found any documentation regarding cross-bucket not being supported so I guess this is unwanted behavior. This should probably throw an error if not supported.

 

 



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