第72课:Spark SQL UDF和UDAF解密与实战 每天晚上20:00YY频道现场授课频道68917580
/***王家林老师授课http://weibo.com/ilovepains*/ 每天晚上20:00YY频道现场授课频道68917580 输入数据 "Spark","Spark","Hadoop","Spark","Hadoop","Spark","Spark","Hadoop","Spark","Hadoop" sqlContext.sql("selectword,computeLeng