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https://issues.apache.org/jira/browse/HIVE-19481?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16472442#comment-16472442
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Sergey Shelukhin commented on HIVE-19481:
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[~steveyeom2017] are you saying HIVE-18910 broke tablesample?
[~djaiswal] the patch for murmur causes the queries in sample10 to produce no
results. Was that by design? I see the test itself was actually changed for
some reason in that patch. Seems like sample should still return some rows
(which it does if table is converted to MM).
> sample10.q returns possibly wrong results for insert-only transactional table
> -----------------------------------------------------------------------------
>
> Key: HIVE-19481
> URL: https://issues.apache.org/jira/browse/HIVE-19481
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 3.0.0
> Reporter: Steve Yeom
> Assignee: Steve Yeom
> Priority: Major
> Fix For: 3.1.0
>
>
> Ran "mvn test -Dtest=TestMiniLlapLocalCliDriver -Dqfile=sample10.q " after
> changing the table to be
> insert-only transactional.
> The following queries returns couple of rows whereis no row results returns
> for non-ACID table.
> query: select ds, count(1) from srcpartbucket tablesample (bucket 2 out of 4
> on key) where ds is not null group by ds ORDER BY ds ASC
> 2008-04-08 14
> 2008-04-09 14
> ..
> query: select ds, count(1) from srcpartbucket tablesample (bucket 1 out of 2
> on key) where ds is not null group by ds ORDER BY ds ASC
> 2008-04-08 4
> 2008-04-09 4
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