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https://issues.apache.org/jira/browse/SPARK-3582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14138559#comment-14138559
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Saurabh Santhosh commented on SPARK-3582:
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When i changed the parameter to Object it works.
and the funny thing is that when i print the class of the runtime instance it
shows 'java.util.HashMap'
> Spark SQL having issue with existing Hive UDFs which take Map as a parameter
> ----------------------------------------------------------------------------
>
> Key: SPARK-3582
> URL: https://issues.apache.org/jira/browse/SPARK-3582
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.1.0
> Reporter: Saurabh Santhosh
>
> I have a UDF with the following evaluate method :
> public Text evaluate(Text argument, Map<Text, Text> params)
> And when i tried invoking this UDF, i was getting the following error.
> scala.MatchError: interface java.util.Map (of class java.lang.Class)
> at
> org.apache.spark.sql.hive.HiveInspectors$class.javaClassToDataType(HiveInspectors.scala:35)
> at
> org.apache.spark.sql.hive.HiveFunctionRegistry.javaClassToDataType(hiveUdfs.scala:37)
> had a look at HiveInspectors.scala and was not able to see any resolver for
> java.util.Map
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