[jira] [Created] (HIVE-8145) CBO: bail from Optiq planning if a Select list contains multiple references to the same name

[Harish Butani (JIRA)]

Harish Butani created HIVE-8145:
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             Summary: CBO: bail from Optiq planning if a Select list contains 
multiple references to the same name
                 Key: HIVE-8145
                 URL: https://issues.apache.org/jira/browse/HIVE-8145
             Project: Hive
          Issue Type: Sub-task
            Reporter: Harish Butani


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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