DataFrame.CrossJoin(DataFrame) 方法

定义

命名空间:

Microsoft.Spark.Sql

程序集:

Microsoft.Spark.dll

包:

Microsoft.Spark v1.0.0

显式笛卡尔联接与另一个 DataFrame。

public Microsoft.Spark.Sql.DataFrame CrossJoin (Microsoft.Spark.Sql.DataFrame right);

member this.CrossJoin : Microsoft.Spark.Sql.DataFrame -> Microsoft.Spark.Sql.DataFrame

Public Function CrossJoin (right As DataFrame) As DataFrame

参数

right

DataFrame

联接运算符右侧

返回

DataFrame

DataFrame 对象

注解

笛卡尔联接非常昂贵，没有可以向下推送的额外筛选器。