presto-main/src/main/java/io/prestosql/operator/OperatorContext.java/OperatorContext/recordPhysicalInputWithTiming
class OperatorContext:    public void recordPhysicalInputWithTiming(long sizeInBytes, long positions, long readNanos)
    {
        physicalInputDataSize.update(sizeInBytes);
        physicalInputPositions.update(positions);
        addInputTiming.record(readNanos, 0);
    }