dongjoon-hyun commented on code in PR #46311:
URL: https://github.com/apache/spark/pull/46311#discussion_r1585892152


##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/variant/VariantExpressionEvalUtils.scala:
##########
@@ -58,9 +59,13 @@ object VariantExpressionEvalUtils {
       false
     } else {
       val variantValue = input.getValue
-      // Variant NULL is denoted by basic_type == 0 and val_header == 0
-      variantValue(0) == 0
-     }
+      if(variantValue.isEmpty) {

Review Comment:
   I guess this fails at `Scala` linter? Could you double-check this, 
@harshmotw-db ?



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