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https://issues.apache.org/jira/browse/HIVE-6934?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13977554#comment-13977554
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Hari Sankar Sivarama Subramaniyan commented on HIVE-6934:
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encountered another hive issue as part of this fix.
explain select * from table where 1;
The above query passes where as ' select * from table where 1;' fails when
trying to convert 1 to boolean. We should be able to catch this exception
semantically.
> PartitionPruner doesn't handle top level constant expression correctly
> ----------------------------------------------------------------------
>
> Key: HIVE-6934
> URL: https://issues.apache.org/jira/browse/HIVE-6934
> Project: Hive
> Issue Type: Bug
> Reporter: Harish Butani
> Assignee: Hari Sankar Sivarama Subramaniyan
> Attachments: HIVE-6934.1.patch
>
>
> You hit this error indirectly, because how we handle invalid constant
> comparisons. Consider:
> {code}
> create table x(key int, value string) partitioned by (dt int, ts string);
> -- both these queries hit this issue
> select * from x where key = 'abc';
> select * from x where dt = 'abc';
> -- the issue is the comparison get converted to the constant false
> -- and the PartitionPruner doesn't handle top level constant exprs corrcetly
> {code}
> Thanks to [~hsubramaniyan] for uncovering this as part of adding tests for
> HIVE-5376
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