cxzl25 commented on a change in pull request #25399:
URL: https://github.com/apache/spark/pull/25399#discussion_r424970031
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/command/functions.scala
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@@ -74,6 +76,15 @@ case class CreateFunctionCommand(
}
override def run(sparkSession: SparkSession): Seq[Row] = {
+ // Checks if the given resources exist
+ val hadoopConf = sparkSession.sparkContext.hadoopConfiguration
+ val nonExistentResources = resources.filter { r =>
+ val path = new Path(r.uri)
Review comment:
At present, Spark does not check whether this class is in the jar when
registering a permanent UDF.
But hive does check if jar and class exist.
Can we also add a check for the existence of class in spark, like
registering a temporary function?
https://github.com/apache/hive/blob/9f40d7cc1d889aa3079f3f494cf810fabe326e44/ql/src/java/org/apache/hadoop/hive/ql/exec/Registry.java#L289-L296
https://github.com/apache/hive/blob/9f40d7cc1d889aa3079f3f494cf810fabe326e44/ql/src/java/org/apache/hadoop/hive/ql/exec/Registry.java#L686-L691
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