skambha commented on a change in pull request #24593: [SPARK-27692][SQL] Add 
new optimizer rule to evaluate the deterministic scala udf only once if all 
inputs are literals
URL: https://github.com/apache/spark/pull/24593#discussion_r285749712
 
 

 ##########
 File path: 
sql/core/src/test/scala/org/apache/spark/sql/FileBasedDataSourceSuite.scala
 ##########
 @@ -398,7 +398,7 @@ class FileBasedDataSourceSuite extends QueryTest with 
SharedSQLContext with Befo
               .contains(errorMessage(format)))
 
             msg = intercept[AnalysisException] {
-              spark.udf.register("testType", () => new NullData())
+              spark.udf.register("testType", udf(() => new 
NullData()).asNondeterministic())
 
 Review comment:
   Thanks @kiszk for your comment.   With the latest changes to use the 
optimization disabled by default, we don't need any changes to the existing 
tests.  

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