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From "Vineet Garg (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-18852) Misleading error message in alter table validation
Date Wed, 25 Jul 2018 03:01:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-18852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vineet Garg updated HIVE-18852:
-------------------------------
       Resolution: Fixed
    Fix Version/s: 4.0.0
           Status: Resolved  (was: Patch Available)

Pushed to master. Thanks [~asherman]

> Misleading error message in alter table validation
> --------------------------------------------------
>
>                 Key: HIVE-18852
>                 URL: https://issues.apache.org/jira/browse/HIVE-18852
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>    Affects Versions: 2.4.0
>            Reporter: Dan Burkert
>            Assignee: Andrew Sherman
>            Priority: Major
>             Fix For: 4.0.0
>
>         Attachments: HIVE-18852.1.patch, HIVE-18852.2.patch
>
>
> The metastore's validation error message when attempting to rename a table to a non-existent
database is wrong.  For instance, attempting to alter table 'db.table' to 'non_existent_database.table'
results in the Thrift error:
> {{TException - service has thrown: InvalidOperationException(message=Unable to change
partition or table. Database db does not exist Check metastore logs for detailed stack.non_existent_database)}}
> I believe the offending line of code is [here|https://github.com/apache/hive/blob/branch-2/metastore/src/java/org/apache/hadoop/hive/metastore/HiveAlterHandler.java?utf8=%E2%9C%93#L331-L333],
notice that {{dbname}} is used in the message, not {{newDbName}}.  I don't know if switching
that would cause the case of a non-existing {{dbname}} case to regress, though.



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