Hyukjin Kwon commented on SPARK-17854:

It seems this can be quickly fixed. Please let me submit a PR.

> it will failed when do select rand(null)
> ----------------------------------------
>                 Key: SPARK-17854
>                 URL: https://issues.apache.org/jira/browse/SPARK-17854
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>    Affects Versions: 2.0.0, 2.0.1
>         Environment: spark version:2.0.0
> Linuxversion: Suse 11.3
>            Reporter: chenerlu
>            Priority: Minor
> In spark2.0, when run spark-sql and try to do select rand(null), it failed 
> and the error message as follows:
> > select rand(null);
> INFO SparkSqlParser: Parsing command: select rand(null)
> Error in query: Input argument to rand must be an integer literal.;; line 1 
> pos 7
> In hive or mysql, I do the same operation(select rand(null)), it will success 
> and the value of rand(null) is the same with rand(0).
> this issue has fixed in Hive, the jira link as follows:
> https://issues.apache.org/jira/browse/HIVE-14694

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