Xiao Li created SPARK-23428:
-------------------------------

             Summary: Revert 
                 Key: SPARK-23428
                 URL: https://issues.apache.org/jira/browse/SPARK-23428
             Project: Spark
          Issue Type: Bug
          Components: SQL
    Affects Versions: 2.3.0
            Reporter: Xiao Li
            Assignee: Xiao Li


  test("invalid json with leading nulls - from dataset") {
    import testImplicits._
    withTempDir { tempDir =>
      val path = tempDir.getAbsolutePath
      Seq("""{"firstName":"Chris", "lastName":"Baird"}""",
        """{"firstName":"Doug", 
"lastName":"Rood"}""").toDS().write.mode("overwrite").text(path)
      val schema = new StructType().add("a", 
IntegerType).add("_corrupt_record", StringType)
      val jsonDF = spark.read.schema(schema).option("mode", 
"DROPMALFORMED").json(path)
      checkAnswer(jsonDF, Seq(
        Row("Chris", "Baird"), Row("Doug", "Rood")
      ))
    }
  }

Now it returns 
{noformat}
[null,null]
[null,null]
{noformat}



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