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  1. Hive
  2. HIVE-415

Long queries does not parse in Hive

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Details

    • Bug
    • Status: Closed
    • Critical
    • Resolution: Fixed
    • None
    • 0.3.0
    • Query Processor
    • None
    • Reviewed

    Description

      A query like this won't parse, because the Hive grammar allows backtracking:

      select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL

select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL

select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL

select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL

select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable UNION ALL
select 1 from mytable;

      Attachments

        1. HIVE-415.1.patch
          0.5 kB
          Zheng Shao
        2. HIVE-415.2.patch
          37 kB
          Zheng Shao
        3. HIVE-415.3.branch-0.3.patch
          65 kB
          Zheng Shao
        4. HIVE-415.3.trunk.patch
          62 kB
          Zheng Shao

        Issue Links

          blocks

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-416 Get rid of backtrack in Hive.g

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

          Bug - A problem which impairs or prevents the functions of the product. HIVE-372 Nested UDFs cause _very_ high memory usage when processing query

          • Major - Major loss of function.
          • Closed

          Activity

            People

              zshao Zheng Shao
              zshao Zheng Shao
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              Dates

                Created:
                Updated:
                Resolved: