presto-hive/src/main/java/io/prestosql/plugin/hive/metastore/RecordingHiveMetastore.java/Recording/getPartitionStatistics
class Recording:        @JsonProperty
        public List<Pair<Set<HivePartitionName>, Map<String, PartitionStatistics>>> getPartitionStatistics()
        {
            return partitionStatistics;
        }