presto-main/src/main/java/io/prestosql/operator/aggregation/SumDataSizeForStats.java/SumDataSizeForStats/input
class SumDataSizeForStats:    @InputFunction
    @TypeParameter("T")
    public static void input(@AggregationState NullableLongState state, @BlockPosition @SqlType("T") Block block, @BlockIndex int index)
    {
        update(state, block.getEstimatedDataSizeForStats(index));
    }