Fungsi Masking Pyspark
val df = ss.sparkContext.parallelize( Seq (
("c1", "JAN-2017", 49 ),
("c1", "MAR-2017", 83),
)).toDF("city", "month", "sales")
df.show()
val mask = udf( (s : String) => {
"*** Masked ***"
})
df.withColumn("city", mask($"city")).show`
Glorious Gnu