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  1. Tajo
  2. TAJO-1722

Even distribution of intermediate data for join queries

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    Details

    • Type: Improvement
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: None
    • Fix Version/s: 0.13.0
    • Component/s: distributed query plan
    • Labels:
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      Description

      Data skew is one of the most important problems which affects to the query performance in distributed systems. To do handle this problem, we have used an algorithm for evenly distributing intermediate data for aggregation.
      This ticket is to apply our algorithm for join queries, too.

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            • Assignee:
              jihoonson Jihoon Son
              Reporter:
              jihoonson Jihoon Son
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              Dates

              • Created:
                Updated: