rdblue commented on code in PR #12238:
URL: https://github.com/apache/iceberg/pull/12238#discussion_r1955051131


##########
core/src/main/java/org/apache/iceberg/avro/AvroSchemaUtil.java:
##########
@@ -219,6 +219,13 @@ public static boolean isKeyValueSchema(Schema schema) {
     return schema.getType() == RECORD && schema.getFields().size() == 2;
   }
 
+  public static boolean isVariantSchema(Schema schema) {
+    return schema.getType() == RECORD
+        && schema.getFields().size() == 2
+        && schema.getField("metadata") != null
+        && schema.getField("value") != null;

Review Comment:
   If this is checking the metadata/value fields, should this also verify that 
they are binary?



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