[spark] dataframe equals `a.expect(b).count() == 0`
@Test fun toNull() { // given data class Person( val name: String?, val job: String?, val age: Int ) val spark = SparkUtil.make() val data = spark.createDataFrame( mutableListOf( Person("null", "a", 25), Person("Bob", "null", 30), Person("null", "null", 35) ), Person::class.java ).toDF() val expected = spark.createDataFrame( mutableListOf( Person(null, "a", 25), Person("Bob", null, 30), Person(n..
공부
2023. 3. 8. 12:16
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