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https://issues.apache.org/jira/browse/HIVE-964?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12802114#action_12802114
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Namit Jain commented on HIVE-964:
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I just did a grep in the negative tests directory.
There are only 28 negative create table statements and 3 create functions.
A simpler approach might be change these tests to use the same name - and at
the beginning of each test, just drop all of them.
Kind of like "pre-drop" that John is suggesting. Instead of making it scan the
catalog, we can just drop tables: T1, T2, ... Tn and so on,
assuming all tests follow the same naming convention. The drop can be added in
QTestUtil or NegavtiveCliDriver
> handle skewed keys for a join in a separate job
> -----------------------------------------------
>
> Key: HIVE-964
> URL: https://issues.apache.org/jira/browse/HIVE-964
> Project: Hadoop Hive
> Issue Type: Improvement
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: He Yongqiang
> Fix For: 0.6.0
>
> Attachments: hive-964-2009-12-17.txt, hive-964-2009-12-28-2.patch,
> hive-964-2009-12-29-4.patch, hive-964-2010-01-08.patch,
> hive-964-2010-01-13-2.patch, hive-964-2010-01-14-3.patch,
> hive-964-2010-01-15-4.patch
>
>
> The skewed keys can be written to a temporary table or file, and a followup
> conditional task can be used to perform the join on those keys.
> As a first step, JDBM can be used for those keys
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