stevenzwu commented on code in PR #6222:
URL: https://github.com/apache/iceberg/pull/6222#discussion_r1036696028


##########
flink/v1.16/flink/src/main/java/org/apache/iceberg/flink/FlinkCatalog.java:
##########
@@ -148,6 +150,17 @@ private Namespace toNamespace(String database) {
   }
 
   TableIdentifier toIdentifier(ObjectPath path) {
+    String objectName = path.getObjectName();
+    List<String> tableName = Splitter.on('$').splitToList(objectName);
+    if (tableName.size() > 1 && MetadataTableType.from(tableName.get(1)) != 
null) {
+      return TableIdentifier.parse(
+          toNamespace(path.getDatabaseName()).toString()

Review Comment:
   I would make `toNamespace` a static method taking two params (instead of one 
currently)
   ```
   /** Append a new level to the base namespace */
   private static Namespace appendLevel(Namespace baseNamespace, String 
newLevel)
   ```
   
   Then we can append a new level `tableName.get(0)` to the baseNamespace. 
treat `tableName.get(1)` as name when constructing the TableIdentifier.
   ```
   public static TableIdentifier of(Namespace namespace, String name)
   ```
   



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