cloud-fan commented on a change in pull request #30586:
URL: https://github.com/apache/spark/pull/30586#discussion_r535913737
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/CharVarcharUtils.scala
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@@ -69,6 +80,21 @@ object CharVarcharUtils {
case _ => dt
}
+ /**
+ * Replaces CharType/VarcharType with StringType recursively in the given
data type, with a
+ * warning message if it has char or varchar types
+ */
+ def logWarningAndReplaceCharVarcharWithString(dt: DataType): DataType = {
Review comment:
`def replaceCharVarcharWithStringForCast`
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