I've definitely seen some non-prime modulos make a mess of things on platforms that allow them. UniData forces everything to a prime number, but UniVerse and some PICKs don't. If I remember rightly, Sequoia forced it to a number ending in 1, 3, 7, or 9. I remember an argument years ago - supported by Dick Pick, I believe - that said any number that is not divisible by 2 or 5 would be OK with a mod-10 hashing algorithm. I've never played with the math of it, but it sounds valid on the surface. I've seen lots of files with a modulus of 301 - apparently people think it looks kinda prime-ish - that worked as well as the actual prime of 307. But change it to 300 and it's a different story.
Tim Snyder Consulting I/T Specialist , U2 Professional Services North American Lab Services DB2 Information Management, IBM Software Group ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
