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  1. Spark
  2. SPARK-1495

support leftsemijoin for sparkSQL

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    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.0.1, 1.1.0
    • Component/s: SQL
    • Labels:
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      Description

      I created Github PR #395 for this issue.https://github.com/apache/spark/pull/395
      As marmbrus comments there, one design question is which of the following is better:
      1. multiple operators that handle different kinds of joins, letting the planner pick the correct one
      2. putting the switching logic inside of the operator as is done here

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            • Assignee:
              adrian-wang Adrian Wang
              Reporter:
              adrian-wang Adrian Wang
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