sandip-db commented on code in PR #43710:
URL: https://github.com/apache/spark/pull/43710#discussion_r1386617633


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/xml/XmlOptions.scala:
##########
@@ -66,7 +66,11 @@ private[sql] class XmlOptions(
 
   val compressionCodec = 
parameters.get(COMPRESSION).map(CompressionCodecs.getCodecClassName)
   val rowTagOpt = parameters.get(XmlOptions.ROW_TAG).map(_.trim)
-  require(!rowTagRequired || rowTagOpt.isDefined, s"'${XmlOptions.ROW_TAG}' 
option is required.")
+
+  if (rowTagRequired && rowTagOpt.isEmpty) {
+    throw QueryCompilationErrors.xmlRowTagRequiredError(XmlOptions.ROW_TAG)

Review Comment:
   As discussed in the earlier 
[PR](https://github.com/apache/spark/pull/43389), the default row tag is not 
going to match any real XML files and confuse users. This PR standardize this 
error for other services built on top of this.



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