Github user maryannxue commented on a diff in the pull request:
https://github.com/apache/spark/pull/21602#discussion_r197017717
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/DatasetCacheSuite.scala ---
@@ -132,4 +132,19 @@ class DatasetCacheSuite extends QueryTest with
SharedSQLContext with TimeLimits
df.unpersist()
assert(df.storageLevel == StorageLevel.NONE)
}
+
+ test("SPARK-24613 Cache with UDF could not be matched with subsequent
dependent caches") {
+ val expensiveUDF = udf({x: Int => Thread.sleep(10000); x})
--- End diff --
Accumulators probably wouldn't work. I'll do verify plan though.
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