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  1. Hive
  2. HIVE-17626 Query reoptimization using cached runtime statistics
  3. HIVE-18238

Driver execution may not have configuration changing sideeffects

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Details

    • Sub-task
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 3.0.0
    • Logical Optimizer
    • None

    Description

      Driver executes sql statements which use "hiveconf" settings;
      but the Driver itself may not change the configuration...

      I've found an example; which shows how hazardous this is...

      set hive.mapred.mode=strict;
select "${hiveconf:hive.mapred.mode}";
create table t (a int);
analyze table t compute statistics;
select "${hiveconf:hive.mapred.mode}";

      currently; the last select returns nonstrict because of this

      Attachments

        1. HIVE-18238.11.patch
          55 kB
          Zoltan Haindrich
        2. HIVE-18238.10.patch
          58 kB
          Zoltan Haindrich
        3. HIVE-18238.09.patch
          58 kB
          Zoltan Haindrich
        4. HIVE-18238.08.patch
          58 kB
          Zoltan Haindrich
        5. HIVE-18238.07.patch
          62 kB
          Zoltan Haindrich
        6. HIVE-18238.04.patch
          51 kB
          Zoltan Haindrich
        7. HIVE-18238.04wip01.patch
          56 kB
          Zoltan Haindrich
        8. HIVE-18238.03.patch
          46 kB
          Zoltan Haindrich
        9. HIVE-18238.02.patch
          28 kB
          Zoltan Haindrich
        10. HIVE-18238.01wip01.patch
          25 kB
          Zoltan Haindrich

        Issue Links

          is blocked by

          Sub-task - The sub-task of the issue HIVE-18243 Cartesian error for joins defined in where clause

          • Major - Major loss of function.
          • Resolved

          Sub-task - The sub-task of the issue HIVE-18224 Introduce interface above driver

          • Major - Major loss of function.
          • Closed
          links to

          Web Link rb

          Activity

            People

              kgyrtkirk Zoltan Haindrich
              kgyrtkirk Zoltan Haindrich
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              Dates

                Created:
                Updated:
                Resolved: