[jira] [Updated] (HIVE-18699) Check for duplicate partitions in HiveMetastore.exchange_partitions

["Marta Kuczora (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-18699?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Marta Kuczora updated HIVE-18699:
---------------------------------
    Status: Patch Available  (was: Open)

> Check for duplicate partitions in HiveMetastore.exchange_partitions
> -------------------------------------------------------------------
>
>                 Key: HIVE-18699
>                 URL: https://issues.apache.org/jira/browse/HIVE-18699
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>            Reporter: Marta Kuczora
>            Assignee: Marta Kuczora
>            Priority: Minor
>         Attachments: HIVE-18699.1.patch
>
>
> The HiveMetastore.exchange_partitions method throws the following exception if the dest table already contains a partition with the same values as the partition to be exchanged.
> {noformat}
> org.apache.hadoop.hive.metastore.api.MetaException: Insert of object
> "org.apache.hadoop.hive.metastore.model.MPartition@4e78fff5" using statement "INSERT INTO PARTITIONS
> (PART_ID,CREATE_TIME,LAST_ACCESS_TIME,PART_NAME,SD_ID,TBL_ID) VALUES (?,?,?,?,?,?)" failed : The statement was
> aborted because it would have caused a duplicate key value in a unique or primary key constraint or unique index
> identified by 'UNIQUEPARTITION' defined on 'PARTITIONS'.
> {noformat}
> This use case could be handled better by checking if the partition already exists in dest table and if it is, throw a MetaException with a proper error message.



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