linghengqian commented on code in PR #5629:
URL: https://github.com/apache/hive/pull/5629#discussion_r1946438921


##########
packaging/src/docker/README.md:
##########
@@ -210,3 +210,14 @@ 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`. 
+Possible use cases are as follows,
+
+```shell
+docker run -d --env SERVICE_NAME=hiveserver2 --name hive4 
apache/hive:${HIVE_VERSION}
+docker exec -it hive4 /bin/bash
+/opt/hive/bin/schematool -info -dbType hive -metaDbType derby -url 
jdbc:hive2://localhost:10000/default

Review Comment:
   - @dengzhhu653  But even if I create a `compose.yaml` file like this,
   ```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
       ports:
         - "10000:10000"
   ```
   - Then I executed the shell command,
   ```shell
   mvn dependency:get -Dartifact=org.postgresql:postgresql:42.7.5
   docker compose up -d
   docker compose exec hiveserver2-standalone /bin/bash
   /opt/hive/bin/schematool -initSchema -dbType hive -metaDbType derby -url 
jdbc:hive2://localhost:10000/default
   exit
   ```
   - At this point all I can see from Dbeaver CE is empty data.
   - 
![image](https://github.com/user-attachments/assets/685a2825-ba2b-4a52-b513-ebbfba2520f4)
   - In contrast, the `information_schema.columns` obtained by the following 
shell command is not empty,
   ```shell
   docker run -d --env SERVICE_NAME=hiveserver2 --name hive4 apache/hive:4.0.1
   docker exec -it hive4 /bin/bash
   /opt/hive/bin/schematool -initSchema -dbType hive -metaDbType derby -url 
jdbc:hive2://localhost:10000/default
   /opt/hive/bin/schematool -info -dbType hive -metaDbType derby -url 
jdbc:hive2://localhost:10000/default
   exit
   ```
   - Is there any external issue I missed?
   



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