navinvishy commented on code in PR #38947:
URL: https://github.com/apache/spark/pull/38947#discussion_r1089643942
##########
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/CollectionExpressionsSuite.scala:
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@@ -1840,6 +1840,47 @@ class CollectionExpressionsSuite extends SparkFunSuite
with ExpressionEvalHelper
checkEvaluation(ArrayRepeat(Literal("hi"), Literal(null, IntegerType)),
null)
}
+ test("SPARK-41233: ArrayPrepend") {
+ val a0 = Literal.create(Seq(1, 2, 3, 4), ArrayType(IntegerType))
+ val a1 = Literal.create(Seq("a", "b", "c"), ArrayType(StringType))
+ val a2 = Literal.create(Seq.empty[Integer], ArrayType(IntegerType))
+ val a3 = Literal.create(null, ArrayType(StringType))
+
+ checkEvaluation(ArrayPrepend(a0, Literal(0)), Seq(0, 1, 2, 3, 4))
+ checkEvaluation(ArrayPrepend(a1, Literal("a")), Seq("a", "a", "b", "c"))
+ checkEvaluation(ArrayPrepend(a2, Literal(1)), Seq(1))
+ checkEvaluation(ArrayPrepend(a2, Literal(null, IntegerType)), null)
Review Comment:
@zhengruifeng sorry about the delay here. I've updated this to reflect the
behavior you mentioned. Fixed the tests to show that as well. Thanks!
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