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  1. Spark
  2. SPARK-4849

Pass partitioning information (distribute by) to In-memory caching

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    • Type: Improvement
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: 1.2.0
    • Fix Version/s: 1.6.0
    • Component/s: SQL
    • Labels:
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      Description

      HQL "distribute by <column_name>" partitions data based on specified column values. We can pass this information to in-memory caching for further performance improvements. e..g. in Joins, an extra partition step can be saved based on this information.

      Refer - http://apache-spark-user-list.1001560.n3.nabble.com/SchemaRDD-partition-on-specific-column-values-td20350.html

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              • Assignee:
                nongli Nong Li
                Reporter:
                nitin2goyal Nitin Goyal
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                  Updated:
                  Resolved: