dtenedor commented on code in PR #47851:
URL: https://github.com/apache/spark/pull/47851#discussion_r1733768552
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sql/core/src/test/scala/org/apache/spark/sql/DataFrameFunctionsSuite.scala:
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@@ -331,6 +331,54 @@ class DataFrameFunctionsSuite extends QueryTest with
SharedSparkSession {
checkAnswer(df.select(nullif(lit(5), lit(5))), Seq(Row(null)))
}
+ test("nullifzero function") {
+ withTable("t") {
+ // Here we exercise a non-nullable, non-foldable column.
+ sql("create table t(col int not null) using csv")
+ sql("insert into t values (0)")
+ val df = sql("select col from t")
+ checkAnswer(df.selectExpr("nullifzero(col)"), Seq(Row(null)))
Review Comment:
Sounds good, done.
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