Github user nsyca commented on the issue:
https://github.com/apache/spark/pull/14580
@dongjoon-hyun, could you please try this on your PR?
````
val a = Seq((1,2),(2,3)).toDF("a","b").createOrReplaceTempView("A")
val b = Seq((2,5),(3,4)).toDF("a","c").createOrReplaceTempView("B")
sql("select A.A,B.A,A.B,B.C from A full join B on A.A=B.A").show
sql("select A.A,B.A from A full join B on A.A=B.A where coalesce(A.B,B.C)
is not null").show
````
How many rows do you get from the last and the second last statements?
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at infrastruct...@apache.org or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org
For additional commands, e-mail: reviews-h...@spark.apache.org
