dengzhhu653 commented on code in PR #5771:
URL: https://github.com/apache/hive/pull/5771#discussion_r2178747662


##########
ql/src/java/org/apache/hadoop/hive/ql/metadata/Hive.java:
##########
@@ -6006,11 +6009,20 @@ public HiveMetaHook getHook(
       }
     };
 
+    IMetaStoreClient thriftClient = new ThriftHiveMetaStoreClient(conf, 
allowEmbedded);
+    IMetaStoreClient clientWithLocalCache = new 
HiveMetaStoreClientWithLocalCache(conf, thriftClient);
+    IMetaStoreClient sessionLevelClient = new SessionHiveMetaStoreClient(conf, 
clientWithLocalCache);
+    IMetaStoreClient clientWithHook = new 
HookEnabledMetaStoreClientProxy(conf, hookLoader, sessionLevelClient);

Review Comment:
   the `clientWithHook` contains the hook and authorization, while the 
temporary table doesn't need it, can we move this lawyer just above the 
`thriftClient`?
   
   We can also create a static `newClient` method to build the chain as we did 
in SessionHiveMetaStoreClient before



##########
ql/src/java/org/apache/hadoop/hive/ql/metadata/Hive.java:
##########
@@ -6006,11 +6009,20 @@ public HiveMetaHook getHook(
       }
     };
 
+    IMetaStoreClient thriftClient = new ThriftHiveMetaStoreClient(conf, 
allowEmbedded);
+    IMetaStoreClient clientWithLocalCache = new 
HiveMetaStoreClientWithLocalCache(conf, thriftClient);
+    IMetaStoreClient sessionLevelClient = new SessionHiveMetaStoreClient(conf, 
clientWithLocalCache);
+    IMetaStoreClient clientWithHook = new 
HookEnabledMetaStoreClientProxy(conf, hookLoader, sessionLevelClient);

Review Comment:
   The `clientWithHook` contains the hook and authorization, while the 
temporary table doesn't need it, can we move this lawyer just above the 
`thriftClient`?
   
   We can also create a static `newClient` method to build the chain as we did 
in SessionHiveMetaStoreClient before



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