Description
The PySpark documentation says "Must be one of: inner, cross, outer, full, fullouter, full_outer, left, leftouter, left_outer, right, rightouter, right_outer, semi, leftsemi, left_semi, anti, leftanti and left_anti."
However, I get the following error when I set the cross option.
scala> val df1 = spark.createDataFrame(Seq((1,"a"),(2,"b"))) df1: org.apache.spark.sql.DataFrame = [_1: int, _2: string] scala> val df2 = spark.createDataFrame(Seq((1,"A"),(2,"B"), (3, "C"))) df2: org.apache.spark.sql.DataFrame = [_1: int, _2: string] scala> df1.join(right = df2, usingColumns = Seq("_1"), joinType = "cross").show() java.lang.IllegalArgumentException: requirement failed: Unsupported using join type Cross at scala.Predef$.require(Predef.scala:281) at org.apache.spark.sql.catalyst.plans.UsingJoin.<init>(joinTypes.scala:106) at org.apache.spark.sql.Dataset.join(Dataset.scala:1025) ... 53 elided