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https://issues.apache.org/jira/browse/HIVE-2086?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13067833#comment-13067833
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jirapos...@reviews.apache.org commented on HIVE-2086:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/604/
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(Updated 2011-07-19 16:50:07.742470)
Review request for hive.
Changes
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The bug was fixed as a part of HIVE-1218, and this diff adds some regression
tests for this particular issue.
Summary
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Review request for HIVE-2086. The external parameters were being set, but then
being zeroed out by a call to params.clear(), resulting in an external table
that wasn't marked as external.
This addresses bug HIVE-2086.
https://issues.apache.org/jira/browse/HIVE-2086
Diffs (updated)
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build-common.xml b6807fa
data/files/ext_test/test.dat PRE-CREATION
ql/src/test/org/apache/hadoop/hive/ql/QTestUtil.java 6d742e5
ql/src/test/queries/clientpositive/create_like.q 3f8e58d
ql/src/test/results/clientpositive/create_like.q.out 118235e
Diff: https://reviews.apache.org/r/604/diff
Testing
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Automated tests added
Thanks,
Jonathan
> Data loss with external table
> -----------------------------
>
> Key: HIVE-2086
> URL: https://issues.apache.org/jira/browse/HIVE-2086
> 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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