wayneguow commented on code in PR #47481:
URL: https://github.com/apache/spark/pull/47481#discussion_r1693171507
##########
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/StringExpressionsSuite.scala:
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@@ -356,6 +356,8 @@ class StringExpressionsSuite extends SparkFunSuite with
ExpressionEvalHelper {
// scalastyle:on
checkEvaluation(
SubstringIndex(Literal("www||apache||org"), Literal( "||"), Literal(2)),
"www||apache")
+ checkEvaluation(SubstringIndex(
+ Literal("www.apache.org"), Literal("."), Literal.create(null,
IntegerType)), null)
Review Comment:
@miland-db For question 2, if we pass some other string value instead of
null (no matter legal integer or not) with `codegen`, it fails. I will add
another test case.
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