private string JoinColumnUsesIndex(string tableName, string columnName)
        {
            var indexFiles = TableUtils.GetForeignKeyData(DatabaseName, tableName);

            foreach (var file in indexFiles)
            {
                if (file[1] == columnName)
                {
                    return("FK_" + tableName + "_" + file[0]);
                }
            }

            return("");
        }