[GitHub] spark pull request #20429: [SPARK-23157][SQL] Explain restriction on column ...

2018-01-29 Thread asfgit
Github user asfgit closed the pull request at: https://github.com/apache/spark/pull/20429 --- - To unsubscribe, e-mail: reviews-unsubscr...@spark.apache.org For additional commands, e-mail: reviews-h...@spark.apache.org

[GitHub] spark pull request #20429: [SPARK-23157][SQL] Explain restriction on column ...

2018-01-29 Thread henryr
GitHub user henryr opened a pull request: https://github.com/apache/spark/pull/20429 [SPARK-23157][SQL] Explain restriction on column expression in withColumn() ## What changes were proposed in this pull request? It's not obvious from the comments that any added column must