DataFrame.CrossJoin(DataFrame) Method
Definition
Important
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Explicit Cartesian join with another DataFrame
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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
Parameters
- right
- DataFrame
Right side of the join operator
Returns
DataFrame object
Remarks
Cartesian joins are very expensive without an extra filter that can be pushed down.