presto-main/src/main/java/io/prestosql/sql/planner/plan/TableWriterNode.java/TableWriterNode/getStatisticsAggregationDescriptor
class TableWriterNode:    @JsonProperty
    public Optional<StatisticAggregationsDescriptor<Symbol>> getStatisticsAggregationDescriptor()
    {
        return statisticsAggregationDescriptor;
    }