dawidwys commented on code in PR #25952:
URL: https://github.com/apache/flink/pull/25952#discussion_r1915099838


##########
flink-table/flink-table-planner/src/test/java/org/apache/flink/table/planner/catalog/JavaCatalogTableTest.java:
##########
@@ -177,6 +177,31 @@ void testTimeAttributeOfView() {
                         + "GROUP BY window_start, window_end");
     }
 
+    @TestTemplate
+    void testTimeAttributeOfViewSelect() {
+        if (!streamingMode) {
+            // time attributes not supported in batch
+            return;
+        }
+        TableTestUtil testUtil = getTestUtil();
+        TableEnvironment tableEnvironment = testUtil.getTableEnv();
+        tableEnvironment.registerCatalog("cat", new CustomCatalog("cat"));

Review Comment:
   @snuyanzin Are you aware of discussions on actually dropping 
`registerCatalog` method? I think `createCatalog` is not and should not be a 
directed replacement for `registerCatalog`.
   
   `createCatalog` forces you to provide a catalog via service lookup 
mechanism, which is not easy in all cases, especially ones as this one, when 
you want to instantiate tables in memory. I don't really see a reason we should 
force users to go that route.
   
   Moreover, all other APIs do have a version where you can pass an instance:
   ```
   void createTemporarySystemFunction(String name, UserDefinedFunction 
functionInstance);
   void createTemporaryFunction(String path, UserDefinedFunction 
functionInstance);
   void createTemporaryView(String path, Table view);
   void createView(String path, Table view);
   ```



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