akashrn5 commented on a change in pull request #3642: [CARBONDATA-3725]fix 
concurrent creation of Materialized Views issue
URL: https://github.com/apache/carbondata/pull/3642#discussion_r386210430
 
 

 ##########
 File path: 
core/src/main/java/org/apache/carbondata/core/datamap/DataMapCatalog.java
 ##########
 @@ -48,4 +48,9 @@
    */
   void refresh();
 
+  /**
+   * This checks whether the datamapSchema is already registered
+   */
+  Boolean isSchemaAlreadyRegistered(String dataMapName);
 
 Review comment:
   done

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