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  1. Hive
  2. HIVE-15456 Umbrella JIRA for all subquery redesign related tasks and issues
  3. HIVE-15758

Allow correlated scalar subqueries with aggregates which has non-equi join predicates

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      Description

      Queries such as

       select * from part where p_size <> (select count(p_size) from part pp where part.p_type <> pp.p_type); 

      are currently not allowed since HIVE doesn't know how to rewrite such queries to preserve the correctness for cases when there is zero row

        Attachments

        1. HIVE-15758.1.patch
          46 kB
          Vineet Garg
        2. HIVE-15758.2.patch
          45 kB
          Vineet Garg
        3. HIVE-15758.3.patch
          46 kB
          Vineet Garg

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              • Assignee:
                vgarg Vineet Garg
                Reporter:
                vgarg Vineet Garg
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                • Created:
                  Updated:
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