Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/6616#discussion_r31697279
--- Diff: sql/core/src/main/scala/org/apache/spark/sql/DataFrame.scala ---
@@ -448,6 +461,10 @@ class DataFrame private[sql](
* @since 1.3.0
*/
def join(right: DataFrame, joinExprs: Column, joinType: String):
DataFrame = {
+ join(right, Seq(joinExprs), joinType)
+ }
+
+ def join(right: DataFrame, joinExprs: Seq[Column], joinType: String):
DataFrame = {
--- End diff --
So for `def join(self, other, joinExprs=None, joinType=None)` we don't
support given a list of `Column` as `joinExprs`?
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