Sonarr/src/NzbDrone.Core/Datastore/Migration/181_quality_definition_preferred_size.cs

using FluentMigrator;
using NzbDrone.Core.Datastore.Migration.Framework;

namespace NzbDrone.Core.Datastore.Migration
{
    [Migration(181)]
    public class quality_definition_preferred_size : NzbDroneMigrationBase
    {
        protected override void MainDbUpgrade()
        {
            Alter.Table("QualityDefinitions").AddColumn("PreferredSize").AsDouble().Nullable();

            Execute.Sql("UPDATE QualityDefinitions SET PreferredSize = MaxSize - 5 WHERE MaxSize > 5");
        }
    }
}