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  1. Tajo
  2. TAJO-316

Improve GreedyHeuristicJoinOrderAlgorithm to deal with non-commutative joins

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.8.0
    • Component/s: Planner/Optimizer
    • Labels:

      Description

      GreedyHeuristicJoinOrderAlgorithm is a default cost-based join order algorithm. It is designed only for inner joins, and it cannot deal with non-commutative joins, such as left/right/full outer join and semi/anti join. The main goal of this issue is to improve this algorithm to deal with them.

        Attachments

        1. TAJO-316_2.patch
          93 kB
          Hyunsik Choi
        2. TAJO-316.patch
          92 kB
          Hyunsik Choi

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              • Assignee:
                hyunsik Hyunsik Choi
                Reporter:
                hyunsik Hyunsik Choi
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                Dates

                • Created:
                  Updated:
                  Resolved: