JDBC connection.getMetaData().getURL() must return url including parameters

This is my code:

System.out.println("URL 1:" + url);
var connection = DriverManager.getConnection(url, user, password);
System.out.println("URL 2:" + connection.getMetaData().getURL());

And this is output of H2 Connection

URL 1:jdbc:h2:tcp://localhost/test;MODE=PostgreSQL;DATABASE_TO_LOWER=TRUE;DEFAULT_NULL_ORDERING=HIGH;TRACE_LEVEL_FILE=0
URL 2:jdbc:h2:tcp://localhost/test

And this is output of PostgreSQL:

URL 1:jdbc:postgresql://localhost:5432/test?connect_timeout=10
URL 2:jdbc:postgresql://localhost:5432/test?connect_timeout=10

We see that PostgreSQL returns URL including parameters while H2 not.

So I suggest to add possibility to get parameters from Connection in H2. For example, I have connection somewhere inside program and I want to check what H2 Mode is currently used.

Start by tracing H2's JDBC connection metadata implementation and how the connection URL is stored or reconstructed. Reproduce the example with the H2 URL parameters, then verify that Connection.getMetaData().getURL() preserves them and that the reported URL still matches the original connection settings.