public MySqlSourceConfigFactory getConfigFactory() {
        return configFactory;
    }
Get a MySqlParallelSourceBuilder to build a {@link MySqlSource}.

@return a MySql parallel source builder.
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/source/MySqlSource.java