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  1. Spark
  2. SPARK-37375 Umbrella: Storage Partitioned Join (SPJ)
  3. SPARK-48065

SPJ: allowJoinKeysSubsetOfPartitionKeys is too strict

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 3.4.3
    • 4.0.0
    • SQL

    Description

      If spark.sql.v2.bucketing.allowJoinKeysSubsetOfPartitionKeys.enabled is true, then SPJ no longer triggers if there are more join keys than partition keys.  It is triggered only if join keys is equal to , or less than, partition keys.

       

      We can relax this constraint, as this case was supported if the flag is not enabled.

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            szehon Szehon Ho
            szehon Szehon Ho
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