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Posted to reviews@spark.apache.org by cloud-fan <gi...@git.apache.org> on 2018/05/11 17:07:34 UTC

[GitHub] spark pull request #21296: [SPARK-24244][SQL] Passing only required columns ...

Github user cloud-fan commented on a diff in the pull request:

    https://github.com/apache/spark/pull/21296#discussion_r187675312
  
    --- Diff: sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/csv/CSVSuite.scala ---
    @@ -1322,4 +1322,31 @@ class CSVSuite extends QueryTest with SharedSQLContext with SQLTestUtils with Te
         val sampled = spark.read.option("inferSchema", true).option("samplingRatio", 1.0).csv(ds)
         assert(sampled.count() == ds.count())
       }
    +
    +  test("SPARK-24244: Select a little of many columns") {
    --- End diff --
    
    what does this test?


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