presto-main/src/main/java/io/prestosql/operator/PartitionedOutputOperator.java/PartitionedOutputOperator/PartitionedOutputInfo
class PartitionedOutputOperator:        @JsonCreator
        public PartitionedOutputInfo(
                @JsonProperty("rowsAdded") long rowsAdded,
                @JsonProperty("pagesAdded") long pagesAdded,
                @JsonProperty("outputBufferPeakMemoryUsage") long outputBufferPeakMemoryUsage)
        {
            this.rowsAdded = rowsAdded;
            this.pagesAdded = pagesAdded;
            this.outputBufferPeakMemoryUsage = outputBufferPeakMemoryUsage;
        }