Vineet Garg created HIVE-22107:
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             Summary: Correlated subquery producing wrong schema
                 Key: HIVE-22107
                 URL: https://issues.apache.org/jira/browse/HIVE-22107
             Project: Hive
          Issue Type: Bug
          Components: Logical Optimizer
    Affects Versions: 4.0.0
            Reporter: Vineet Garg
            Assignee: Vineet Garg


*Repro*
{code:sql}
create table test(id int, name string,dept string);
insert into test values(1,'a','it'),(2,'b','eee'),(NULL, 'c', 'cse');
select distinct 'empno' as eid, a.id from test a where NOT EXISTS (select c.id 
from test c where a.id=c.id);
{code}

{code}
+-------+--------+
|  eid  |  a.id  |
+-------+--------+
| NULL  | empno  |
+-------+--------+
{code}



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