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From "Jonathan Natkins (JIRA)" <>
Subject [jira] [Commented] (HIVE-2086) Data loss with external table
Date Tue, 19 Jul 2011 05:55:58 GMT


Jonathan Natkins commented on HIVE-2086:

It looks like this was actually just fixed today, as a part of HIVE-1218.  However, that fix
didn't add any regression tests for this bug, so I'm going to prepare an updated patch once
I finish running the test suite.

> Data loss with external table
> -----------------------------
>                 Key: HIVE-2086
>                 URL:
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>    Affects Versions: 0.7.0
>         Environment: Amazon  elastics mapreduce cluster
>            Reporter: Q Long
>            Assignee: Jonathan Natkins
>         Attachments: HIVE-2086.1.patch, HIVE-2086.2.patch, create_like.q.out
> Data loss when using "create external table like" statement. 
> 1) Set up an external table S, point to location L. Populate data in S.
> 2) Create another external table T, using statement like this:
>     create external table T like S location L
>    Make sure table T point to the same location as the original table S.
> 3) Query table T, see the same set of data in S.
> 4) drop table T.
> 5) Query table S will return nothing, and location L is deleted. 

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