HyukjinKwon commented on code in PR #46649:
URL: https://github.com/apache/spark/pull/46649#discussion_r1605735539
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/TypeCoercion.scala:
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@@ -969,6 +969,8 @@ object TypeCoercion extends TypeCoercionBase {
// Note that ret is nullable to avoid typing a lot of Some(...) in this
local scope.
// We wrap immediately an Option after this.
@Nullable val ret: DataType = (inType, expectedType) match {
+ case (_: StringType, _: StringType) => expectedType.defaultConcreteType
Review Comment:
This seems to be already working in ANSI.
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