你好,我对Hive很新,并且正在学习Hive的WINDOWING功能。我遇到了一个问题。 我试图找到的最低收盘价为每个股票代码(每个股票有22条记录,我想找到最低) 我写了一个查询: SELECT ticker, close FROM
(SELECT ticker, close, RANK() OVER (PARTITION BY ticker) AS rank FROM stocks)
斜交数据分发我在弗林克此Java代码: env.setParallelism(6);
//Read from Kafka topic with 12 partitions
DataStream<String> line = env.addSource(myConsumer);
//Filter half of the records
DataStream<Tuple2<String,