String toDdl() {
        return String.format(
                "CREATE TABLE %s (\n\t %s %s );",
                quote(tableId), fieldDefinitions(), pkDefinition());
    }
used to generate table definition in ddl with "desc table".
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/schema/MySqlTableDefinition.java