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From "Jinfeng Ni (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (DRILL-3018) Queries with scalar aggregate and non equality (non correlated) fail to plan
Date Mon, 11 May 2015 19:06:59 GMT

     [ https://issues.apache.org/jira/browse/DRILL-3018?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jinfeng Ni updated DRILL-3018:
------------------------------
    Attachment: 0001-DRILL-3018-Fix-CanNotPlan-for-nestLoop-left-join-cau.patch

> Queries with scalar aggregate  and non equality (non correlated) fail to plan
> -----------------------------------------------------------------------------
>
>                 Key: DRILL-3018
>                 URL: https://issues.apache.org/jira/browse/DRILL-3018
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Query Planning & Optimization
>    Affects Versions: 1.0.0
>            Reporter: Victoria Markman
>            Assignee: Jinfeng Ni
>             Fix For: 1.0.0
>
>         Attachments: 0001-DRILL-3018-Fix-CanNotPlan-for-nestLoop-left-join-cau.patch,
tables.tar
>
>
> This is a regression.
> Both queries worked and returned correct result with May 7 build
> (mapr-drill-1.0.0.31658-1.noarch.rpm)
> Running with the latest build, I got these two failures:
> {code}
> select * from j2 where c_integer > (select min(c_bigint) from j7 where c_boolean is
null)
> Failed with exception
> java.sql.SQLException: SYSTEM ERROR: org.apache.drill.exec.work.foreman.UnsupportedRelOperatorException:
This query cannot be planned possibly due to either a cartesian join or an inequality
> select * from j2 where c_float < (select min(c_float) from j6 where c_boolean is null
)
> Failed with exception
> java.sql.SQLException: SYSTEM ERROR: org.apache.drill.exec.work.foreman.UnsupportedRelOperatorException:
This query cannot be planned possibly due to either a cartesian join or an inequality join

> {code}
> The common pattern between these queries is that function MIN is running over no rows,
in both queries there is no correlation to the outer table.
> {code}
> -- Non correlated
> -- Greater than
> -- MIN returns NULL
> select * from j2 where c_integer > (select min(c_bigint) from j7 where c_boolean is
null);
> -- Non correlated
> -- Less than
> -- MIN returns NULL
> select * from j2 where c_float < (select min(c_float) from j6 where c_boolean is null
);
> {code}



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