presto-base-jdbc/src/main/java/io/prestosql/plugin/jdbc/jmx/StatisticsAwareJdbcClient.java/StatisticsAwareJdbcClient/toWriteMapping
class StatisticsAwareJdbcClient:    @Override
    public WriteMapping toWriteMapping(ConnectorSession session, Type type)
    {
        return stats.toWriteMapping.wrap(() -> getDelegate().toWriteMapping(session, type));
    }