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  1. IMPALA
  2. IMPALA-4268 Rework coordinator buffering to buffer more data
  3. IMPALA-7477

Improve QueryResultSet interface to allow appending a batch of rows at a time

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • Impala 3.2.0
    • Backend
    • None

    Description

      The QueryResultSet interface used from PlanRootSink operates on a row at a time and is inefficient and inelegant. We can improve code readability by moving some logic from PlanRootSink to QueryResultSet and improve perf if we switch to an interface that allows appending a batch.

      This will make IMPALA-4268 incrementally easier.

      There are some TODOs in the code related to this.

      Attachments

        Issue Links

          breaks

          Bug - A problem which impairs or prevents the functions of the product. IMPALA-7588 incorrect HS2 null handling introduced by IMPALA-7477

          • Blocker - Blocks development and/or testing work, production could not run
          • Resolved
          depends upon

          Sub-task - The sub-task of the issue IMPALA-7647 Fix test gap - no test coverage of non-trivial HS2 result sets

          • Major - Major loss of function.
          • Resolved
          is duplicated by

          Improvement - An improvement or enhancement to an existing feature or task. IMPALA-1580 Optimize conversion of row batch to query result set

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Resolved

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              tarmstrong Tim Armstrong
              tarmstrong Tim Armstrong
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              Dates

                Created:
                Updated:
                Resolved: