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  1. Hive
  2. HIVE-22107

Correlated subquery producing wrong schema

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    Description

      Repro

      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);
      
      +-------+--------+
      |  eid  |  a.id  |
      +-------+--------+
      | NULL  | empno  |
      +-------+--------+
      

      Attachments

        1. HIVE-22107.5.patch
          301 kB
          Vineet Garg
        2. HIVE-22107.4.patch
          295 kB
          Vineet Garg
        3. HIVE-22107.3.patch
          291 kB
          Vineet Garg
        4. HIVE-22107.2.patch
          288 kB
          Vineet Garg
        5. HIVE-22107.1.patch
          13 kB
          Vineet Garg

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              vgarg Vineet Garg
              vgarg Vineet Garg
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