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  1. Hive
  2. HIVE-20222

Enable Skew Join Optimization For Outer Joins

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Details

    • New Feature
    • Status: Open
    • Major
    • Resolution: Unresolved
    • 3.0.0, 4.0.0
    • None
    • Logical Optimizer

    Description

      // We are trying to adding map joins to handle skew keys, and map join right
// now does not work with outer joins
if (!GenMRSkewJoinProcessor.skewJoinEnabled(parseCtx.getConf(), joinOp))
return;

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          is related to

          Improvement - An improvement or enhancement to an existing feature or task. HIVE-964 handle skewed keys for a join in a separate job

          • Major - Major loss of function.
          • Closed

          Activity

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              Unassigned Unassigned
              belugabehr David Mollitor
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              Dates

                Created:
                Updated: