Feature request or enhancement

This is a feature request

Which use case/requirement will be addressed by the proposed feature?

When using the sqlserver connector, the "database.port" property is a required field with the default value of 1433.  This is problematic when you have a named instance and the port is not configured with the default port.  There needs to be a way via the properties to indicate that the "database.port" property is not provided and to not default to the default port (1433).

Implementation approach

I have already implemented a solution for this and would like to commit for review.  The approach includes the definition of a new property ("database.noport") and the definition of a new URL Pattern that doesn't include the port in the jdbc connection string.  When creating the ConnectionFactory, if the "noport" property exists then a ConnectionFactory is created using the url pattern without the port in the string.  Otherwise, a ConnectionFactory is created using the existing url pattern.