hive on spark demo

启动spark-shell，在spark-shell里执行：

val sc: SparkContext // An existing SparkContext.val hiveContext = new org.apache.spark.sql.hive.HiveContext(sc)// Importing the SQL context gives access to all the public SQL functions and implicit conversions.import hiveContext._hql("CREATE TABLE IF NOT EXISTS src (key INT, value STRING)")hql("LOAD DATA LOCAL INPATH 'examples/src/main/resources/kv1.txt' INTO TABLE src")// Queries are expressed in HiveQLhql("FROM src SELECT key, value").collect().foreach(println)