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From "Navis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-6133) Support partial partition exchange
Date Tue, 01 Apr 2014 09:11:22 GMT

     [ https://issues.apache.org/jira/browse/HIVE-6133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Navis updated HIVE-6133:
------------------------

    Attachment: HIVE-6133.1.patch.txt

> Support partial partition exchange
> ----------------------------------
>
>                 Key: HIVE-6133
>                 URL: https://issues.apache.org/jira/browse/HIVE-6133
>             Project: Hive
>          Issue Type: Improvement
>          Components: Query Processor
>            Reporter: Navis
>            Assignee: Navis
>            Priority: Minor
>         Attachments: HIVE-6133.1.patch.txt
>
>
> Current alter exchange coerces source and destination table to have same partition columns.
But source table has sub-set of partitions and provided partition spec supplements to be a
complete partition spec, it need not to be that.
> For example, 
> {noformat}
> CREATE TABLE exchange_part_test1 (f1 string) PARTITIONED BY (ds STRING);
> CREATE TABLE exchange_part_test2 (f1 string) 
> ALTER TABLE exchange_part_test1 EXCHANGE PARTITION (ds='2013-04-05') WITH TABLE exchange_part_test2;
> {noformat}
> or 
> {noformat}
> CREATE TABLE exchange_part_test1 (f1 string) PARTITIONED BY (ds STRING, hr STRING);
> CREATE TABLE exchange_part_test2 (f1 string) PARTITIONED BY (hr STRING)
> ALTER TABLE exchange_part_test1 EXCHANGE PARTITION (ds='2013-04-05') WITH TABLE exchange_part_test2;
> {noformat}
> can be possible.



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