public static void AddColumn <T>(this IDbCommand dbCmdm,
Expression <Func <T, object> > field)
{
var modelDef = ModelDefinition <T> .Definition;
var name = OrmLiteConfig.DialectProvider.FieldName(field);
var fieldDef = modelDef.FieldDefinitions.First(f => f.Name == name);
dbCmdm.AddColumn(typeof(T), fieldDef);
}