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Posted to dev@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2014/09/17 17:39:34 UTC
[jira] [Created] (HIVE-8159) CBO: bail from Optiq planning if a
Select list contains multiple references to the same name
Ashutosh Chauhan created HIVE-8159:
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Summary: CBO: bail from Optiq planning if a Select list contains multiple references to the same name
Key: HIVE-8159
URL: https://issues.apache.org/jira/browse/HIVE-8159
Project: Hive
Issue Type: Sub-task
Components: CBO
Reporter: Harish Butani
Assignee: Harish Butani
Fix For: 0.14.0
Optiq explicitly disallows this:
{code}
select x, x from t1
{code}
This is allowed in Hive (and also in mysql). Will check in Postgres. For now bailing from Optiq planning if we see this. Will file an Optiq issue.
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