How does one make NHibernate stop using nvarchar(4000) for insert parameter strings?

Question

I need to optimize a query that is being produced by a save (insert query) on a domain entity. I\'ve configured NHibernate using Fluent NHibernate.

Here\'s the query ge

Answer 1

Here is a work around, if you want to replace all nvarchar with varchar

public class Sql2008NoNVarCharDriver : Sql2008ClientDriver
{
    public override void AdjustCommand(IDbCommand command)
    {
        foreach (System.Data.SqlClient.SqlParameter x in command.Parameters)
        {
            if (x.SqlDbType == SqlDbType.NVarChar)
            {
                x.SqlDbType = SqlDbType.VarChar;
            }
        }
        base.AdjustCommand(command);
    }
}

Then plug it into your config

var cfg = Fluently.Configure()
            .Database(MsSqlConfiguration.MsSql2008.ConnectionString(connectionString)
            .Driver())
            ...