Yongzhi Chen created HIVE-9528:
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Summary: SemanticException: Ambiguous column reference
Key: HIVE-9528
URL: https://issues.apache.org/jira/browse/HIVE-9528
Project: Hive
Issue Type: Bug
Affects Versions: 0.14.0
Reporter: Yongzhi Chen
When running the following query:
SELECT if( COUNT( * ) == 0, 'true', 'false' ) as RESULT FROM ( select * from
sim a join sim2 b on a.simstr=b.simstr) app
Error: Error while compiling statement: FAILED: SemanticException [Error
10007]: Ambiguous column reference simstr in app (state=42000,code=10007)
This query works fine in hive 0.10
In the apache trunk, following workaround will work:
SELECT if(COUNT( * ) == 0, 'true', 'false') as RESULT FROM (select a.* from sim
a join sim2 b on a.simstr=b.simstr) app;
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