pattern 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_r285721308
##########
File path: sql/core/src/test/scala/org/apache/spark/sql/UDFSuite.scala
##########
@@ -151,6 +152,41 @@ class UDFSuite extends QueryTest with SharedSQLContext {
assert(sql("SELECT strLenScala('test', 1)").head().getInt(0) === 5)
}
+ test("Deterministic and literal UDF optimization") {
+ def udfNodesCount(plan: LogicalPlan): Int = {
Review comment:
Might this `udfNodesCount` function be pulled up outside of this test for
future reuse in other tests?
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