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  1. IMPALA
  2. IMPALA-5100 add run time scalar subquery check
  3. IMPALA-8954

Support uncorrelated subqueries in the select list

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    Details

    • Type: Sub-task
    • Status: Open
    • Priority: Critical
    • Resolution: Unresolved
    • Affects Version/s: Impala 3.3.0
    • Fix Version/s: None
    • Component/s: Frontend
    • Epic Color:
      ghx-label-12

      Description

      [localhost:21000] default> select 'foo', (select 'bar');
      Query: select 'foo', (select 'bar')
      Query submitted at: 2019-09-18 13:44:43 (Coordinator: http://tarmstrong-box:25000)
      ERROR: AnalysisException: Subqueries are not supported in the select list.
      

      I think we can support these, implemented as a nested loop join with a cardinality check node if needed.

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            • Assignee:
              superdupershant Shant Hovsepian
              Reporter:
              tarmstrong Tim Armstrong
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              Dates

              • Created:
                Updated: