danny0405 commented on issue #11807:
URL: https://github.com/apache/hudi/issues/11807#issuecomment-2301628592

   From the source code it looks like there are multiple fields named "array" 
in the schema, can you share with us the table creation schema after the alter 
table operation? Here is the logic I found in avro `Schema.class`:
   
   ```java
       public Schema put(Name name, Schema schema) {
         if (containsKey(name))
           throw new SchemaParseException("Can't redefine: " + name);
         return super.put(name, schema);
       }
   ```


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