linghengqian commented on code in PR #5629:
URL: https://github.com/apache/hive/pull/5629#discussion_r1947674102


##########
packaging/src/docker/README.md:
##########
@@ -210,3 +210,54 @@ docker compose down
     select count(distinct a) from hive_example;
     select sum(b) from hive_example;
   ```
+
+#### Hive Schema Tool
+
+`Hive Schema Tool` is located in the Docker Image at 
`/opt/hive/bin/schematool`.
+
+By default, system libraries such as `information_schema` for HiveServer2 are 
not created. 
+To create system libraries for a HiveServer2 instance, 
+users need to configure HiveServer2 to use a remote Hive Metastore Server and 
use a database other than embedded Derby for the Hive Metastore Server.
+
+Assuming `SDKMAN!` and `Docker CE` are installed, a possible use case is as 
follows.
+Create a `compose.yaml` file in the current directory,
+
+```yaml
+services:
+  some-postgres:
+    image: postgres:17.2-bookworm
+    environment:
+      POSTGRES_PASSWORD: "example"
+  metastore-standalone:
+    image: apache/hive:4.0.1
+    depends_on:
+      - some-postgres
+    environment:
+      SERVICE_NAME: metastore
+      DB_DRIVER: postgres
+      SERVICE_OPTS: >-
+        -Djavax.jdo.option.ConnectionDriverName=org.postgresql.Driver
+        
-Djavax.jdo.option.ConnectionURL=jdbc:postgresql://some-postgres:5432/postgres
+        -Djavax.jdo.option.ConnectionUserName=postgres
+        -Djavax.jdo.option.ConnectionPassword=example
+    volumes:
+      - 
~/.m2/repository/org/postgresql/postgresql/42.7.5/postgresql-42.7.5.jar:/opt/hive/lib/postgres.jar
+  hiveserver2-standalone:
+    image: apache/hive:4.0.1
+    depends_on:
+      - metastore-standalone
+    environment:
+      SERVICE_NAME: hiveserver2
+      SERVICE_OPTS: >-
+        -Dhive.metastore.uris=thrift://metastore-standalone:9083

Review Comment:
   - There is a new issue at 
https://github.com/apache/hive/pull/5629#pullrequestreview-2603571362 I will 
say that I am a bit confused as to why HiveServer2 needs to connect to the 
Postgres instance used by the Hive Metastore Server....



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