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https://issues.apache.org/jira/browse/SPARK-18430?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Reynold Xin resolved SPARK-18430.
---------------------------------
Resolution: Fixed
Fix Version/s: 2.1.0
> 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
> Fix For: 2.1.0
>
>
> 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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