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