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Posted to dev@hive.apache.org by "Peter Varga (Jira)" <ji...@apache.org> on 2020/10/06 06:37:00 UTC

[jira] [Created] (HIVE-24233) except subquery throws nullpointer with cbo disabled

Peter Varga created HIVE-24233:
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             Summary: except subquery throws nullpointer with cbo disabled
                 Key: HIVE-24233
                 URL: https://issues.apache.org/jira/browse/HIVE-24233
             Project: Hive
          Issue Type: Bug
            Reporter: Peter Varga
            Assignee: Peter Varga


Except and intersect was only implemented with Calcite in HIVE-12764. If cbo is disabled it would just throw a nullpointer exception. We should at least throw a SemanticException stating this is not supported.

Repro:
set hive.cbo.enable=false;
create table test(id int);
insert into table test values(1);
select id from test except select id from test;



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