src/main/java/org/vanilladb/bench/util/RandomValueGenerator.java
public long randomLongRange(long min, long max) {

		if (max <= min)
			return min;

		long width = max - min;
		return (long) (rng.nextDouble() * width) + min;
	}
public long randomLongRange(long min, long max) {

		if (max <= min)
			return min;

		long width = max - min;
		return (long) (rng.nextDouble() * width) + min;
	}
Return a long in the (inclusive) range [min, max].