随笔分类 -  spark(sql/dataframe/dataset)

临时视图TempView
摘要：spark中默认的视图的生命周期仅为当前session会话,会话结束视图消失 // Register the DataFrame as a SQL temporary view df.createOrReplaceTempView("people") val sqlDF = spark.sql("S 阅读全文
posted @ 2020-05-22 10:41 mappler 阅读(487) 评论(0) 推荐(0)