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https://issues.apache.org/jira/browse/HIVE-341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12680800#action_12680800
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Prasad Chakka commented on HIVE-341:
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it is the partition pruning code that is bailing out here. if we fix that code
few other JIRAs also will be closed.
> Specifying partition column without table alias causes unknown exception
> ------------------------------------------------------------------------
>
> Key: HIVE-341
> URL: https://issues.apache.org/jira/browse/HIVE-341
> Project: Hadoop Hive
> Issue Type: Bug
> Components: Query Processor
> Affects Versions: 0.2.0
> Reporter: Raghotham Murthy
>
> Created two tables - tmp_rsm_abc and tmp_rsm_abc1. The latter is partitioned
> on ds. Query on first table succeeds, but query on second fails. See the
> session below.
> hive> describe tmp_rsm_abc;
>
> a string
> b int
> Time taken: 0.116 seconds
> hive> select a, b from tmp_rsm_abc where b > 5;
> <------------------------------------- this query succeeds
> Unknown 19
> Unknown 29
> Unknown 29
> Unknown 29
> Unknown 30
> Unknown 25
> Unknown 15
> Unknown 17
> Unknown 28
> Unknown 17
> Time taken: 8.198 seconds
> hive> create table tmp_rsm_abc1(a string, b int) partitioned by (ds string);
> OK
> Time taken: 0.118 seconds
> hive> insert overwrite table tmp_rsm_abc1 partition (ds = '10') select a, b
> from tmp_rsm_abc where b > 5;
> 10 Rows loaded to tmp_rsm_abc1
> OK
> Time taken: 9.319 seconds
> hive> select a, b from tmp_rsm_abc1 where ds = '10';
> <--------------------------------------------- this query fails
> FAILED: Unknown exception : null
> Time taken: 0.053 seconds
> hive>
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