function maybe_add_column($table_name, $column_name, $create_ddl) {
global $wpdb, $debug;
foreach ($wpdb->get_col("DESC $table_name",0) as $column ) {
function maybe_add_column($table_name, $column_name, $create_ddl) {
global $wpdb, $debug;
foreach ($wpdb->get_col("DESC $table_name",0) as $column ) {