From your schema name, it looks like you are using MS Sql Server.
I think, this is something SQL Server defines not by Mendix. Look in the below link for SQL server schemas.
Mendix by default supports PostgresSQL on their hosting. So, if you are self hosting with MS SQL server, this is something you must look in at your hosting with your DBA.
I am not sure if this is a question for Mendix forum.