[Feature] Keep unknown property when getting url from database metadata

I’m writing features for jdbc distributed tracing. In particular, the ability to define the remote service name inside the connection string that will be parsed. Unfortunately, unknown tokens are removed from the final properties map.

final Connection connection = DriverManager.getConnection("sqlserver://localhost;databaseName=master;foo=bar", "user", "password");
connection.getMetaData().getURL().contains("foo=bar"); //returns false

Indeed, in SQLServerDriver.java#L576, null is returned for unknown tokens.

A quick fix would be to return the name instead of null but it might break some other logic in the code (even if the test passes locally on my machine)

What do you think of such feature. Does it make sense ?

Thanks (PS: it works with other databases such as MySQL)

[cheenamalhotra]

Thanks @hypnoce, we are looking into the issue and will keep you posted!

[ajlam]

Closing this issue. @hypnoce, please let us know if you have any additional questions.