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https://issues.apache.org/jira/browse/TAJO-830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hyunsik Choi updated TAJO-830:
------------------------------

    Priority: Major  (was: Minor)

> Some filter conditions with a SUBQUERY are removed by optimizer.
> ----------------------------------------------------------------
>
>                 Key: TAJO-830
>                 URL: https://issues.apache.org/jira/browse/TAJO-830
>             Project: Tajo
>          Issue Type: Bug
>            Reporter: Hyoungjun Kim
>            Assignee: Hyoungjun Kim
>         Attachments: TAJO-830.patch
>
>
> In the case of a next query, "col3 like '1993-11-24%';" condition removed by 
> optimized. 
> {code:sql}
> select a.*
> from (
>     select 
>       L_RETURNFLAG as col1, 
>       L_EXTENDEDPRICE as col2, 
>       concat(L_RECEIPTDATE, L_LINESTATUS) as col3 
>     from lineitem
> ) a
> where col2 > 0 && col3 like '1993-11-24%';
> {code}



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