[jira] [Assigned] (SPARK-18430) Returned Message Null when Hitting an Invocation Exception of Function Lookup.

["Apache Spark (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-18430?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Apache Spark reassigned SPARK-18430:
------------------------------------

    Assignee: Xiao Li  (was: Apache Spark)

> Returned Message Null when Hitting an Invocation Exception of Function Lookup.
> ------------------------------------------------------------------------------
>
>                 Key: SPARK-18430
>                 URL: https://issues.apache.org/jira/browse/SPARK-18430
>             Project: Spark
>          Issue Type: Bug
>          Components: SQL
>    Affects Versions: 2.0.0, 2.1.0
>            Reporter: Xiao Li
>            Assignee: Xiao Li
>
> When the exception is an invocation exception during function lookup, we return a useless/confusing error message:
> For example, 
> {code}
>       df.selectExpr("format_string()")
> {code}
> or 
> {code}
>       df.selectExpr("concat_ws()")
> {code}
> Below is the error message we got:
> {code}
> null; line 1 pos 0
> org.apache.spark.sql.AnalysisException: null; line 1 pos 0
> {code}



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