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  1. Hive
  2. HIVE-3107

Improve semantic analyzer to better handle column name references in group by/sort by clauses

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.9.0, 0.10.0, 0.11.0, 0.12.0
    • Fix Version/s: 0.13.0
    • Component/s: Query Processor
    • Labels:
      None

      Description

      This is related to HIVE-1922.

      Following queries all fail with various SemanticExceptions:

      explain select t.c from t group by c;
      explain select t.c from t group by c sort by t.c; 
      explain select t.c as c0 from t group by c0;
      explain select t.c from t group by t.c sort by t.c; 
      

      It is true that one could always find a version of any of above queries that works. But one has to try to find out and it doesn't work well with machine generated SQL queries.

        Attachments

        1. HIVE-3107.6.patch
          51 kB
          Harish Butani
        2. HIVE-3107.5.patch
          48 kB
          Harish Butani
        3. HIVE-3107.4.patch
          47 kB
          Harish Butani
        4. HIVE-3107.3.patch
          46 kB
          Harish Butani
        5. HIVE-3107.2.patch
          36 kB
          Harish Butani
        6. HIVE-3107.1.patch
          30 kB
          Harish Butani

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              • Assignee:
                rhbutani Harish Butani
                Reporter:
                rding Richard Ding
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                Dates

                • Created:
                  Updated:
                  Resolved: