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Posted to issues@spark.apache.org by "Herman van Hövell (Jira)" <ji...@apache.org> on 2020/01/29 21:58:00 UTC

[jira] [Created] (SPARK-30671) SparkSession emptyDataFrame should not create an RDD

Herman van Hövell created SPARK-30671:
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             Summary: SparkSession emptyDataFrame should not create an RDD
                 Key: SPARK-30671
                 URL: https://issues.apache.org/jira/browse/SPARK-30671
             Project: Spark
          Issue Type: New Feature
          Components: SQL
    Affects Versions: 2.4.4
            Reporter: Herman van Hövell
            Assignee: Herman van Hövell


SparkSession.emptyDataFrame uses an empty RDD in the background. This is a bit of a pity because the optimizer can't recognize this as being empty and it won't apply things like {{PropagateEmptyRelation}}.



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