presto-main/src/main/java/io/prestosql/operator/JoinOperatorInfo.java/JoinOperatorInfo/createJoinOperatorInfo
class JoinOperatorInfo:    public static JoinOperatorInfo createJoinOperatorInfo(JoinType joinType, long[] logHistogramCounters, Optional<Long> lookupSourcePositions)
    {
        long[] logHistogramProbes = new long[HISTOGRAM_BUCKETS];
        long[] logHistogramOutput = new long[HISTOGRAM_BUCKETS];
        for (int i = 0; i < HISTOGRAM_BUCKETS; i++) {
            logHistogramProbes[i] = logHistogramCounters[2 * i];
            logHistogramOutput[i] = logHistogramCounters[2 * i + 1];
        }
        return new JoinOperatorInfo(joinType, logHistogramProbes, logHistogramOutput, lookupSourcePositions);
    }