presto-main/src/main/java/io/prestosql/operator/TableWriterOperator.java/TableWriterInfo/toString
class TableWriterInfo:        @Override
        public String toString()
        {
            return toStringHelper(this)
                    .add("pageSinkPeakMemoryUsage", pageSinkPeakMemoryUsage)
                    .add("statisticsWallTime", statisticsWallTime)
                    .add("statisticsCpuTime", statisticsCpuTime)
                    .add("validationCpuTime", validationCpuTime)
                    .toString();
        }