pan3793 commented on PR #4838:
URL: https://github.com/apache/zeppelin/pull/4838#issuecomment-2361501953

   > do we really need to remove white spaces here?
   
   I have the same question too. Is there any potential risk if we have encoded 
while spaces in the JDBC URL?
   
   In [Apache Kyuubi 
cases](https://kyuubi.readthedocs.io/en/master/client/jdbc/kyuubi_jdbc.html), 
it allows the user to pass the `spark.app.name` as part of JDBC URL, so the 
encoded URL might be like
   ```
   
jdbc:kyuubi://host:port/db;#spark.app.name=Hello%20World;spark.driver.memory=4g
   ```
   
   For example,
   ```
   $  bin/beeline -u 
'jdbc:hive2://localhost:10009/#spark.app.name=Hello%20World'
   ```
   
   ```
   0: jdbc:hive2://localhost:10009/#spark.app.na> set spark.app.name;
   
   24/09/20 00:30:25 INFO ExecuteStatement:
              Spark application name: Hello World
                    application ID: local-1726763393107
                    application web UI: http://192.168.8.150:53761
                    master: local[*]
                    deploy mode: client
                    version: 3.3.1
              Start time: 2024-09-20T00:29:52.154
              User: anonymous
   ...
   2024-09-20 00:30:26.123 INFO org.apache.kyuubi.operation.ExecuteStatement: 
Processing anonymous's query[a8771241-5233-44fe-8c69-ad94a8f0217d]: 
RUNNING_STATE -> FINISHED_STATE, time taken: 0.128 seconds
   +-----------------+--------------+
   |       key       |    value     |
   +-----------------+--------------+
   | spark.app.name  | Hello World  |
   +-----------------+--------------+
   1 row selected (0.401 seconds)
   ```


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