yesterday I was asked by a colleague on data partitioning.
He wanted to partition 100000s of Entities in blocks of 1000
for sending a single Database update for 1000 entities.

Below is the simplified input, partition size is N=3 and the
requested output. Below that is the solution I provided.

Here are my questions:
* can this task be done without recursion in EXSLT?
  [the colleage did not like the idea of doing the partitioning with
   just XPath (1<=position()<=1000, 1001<=position()<=2000, ...)
   because of the 6 digit number of entities]

	Martin Honnen
	http://msmvps.com/blogs/martin_honnen/