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Posted to dev@hive.apache.org by "Harish Butani (JIRA)" <ji...@apache.org> on 2014/04/18 21:04:20 UTC
[jira] [Created] (HIVE-6934) PartitionPruner doesn't handle top
level constant expression correctly
Harish Butani created HIVE-6934:
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Summary: 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
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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