[Zope] 1000-record limit?

Greetings! I know I saw this discussed a long time ago, but I completely failed to find the thread anywhere, so here goes . . . We're running a somewhat older release of Zope with ZOracleDA, and we've run up against a 1000-record limit when returning data for reports, etc. I know that this is intended behavior (careful_range in DT_Util.py), but I'm wondering what the reasoning is, and if I should be even considering playing around with this (I'm assuming it was put in there for *some* reason . . . :) Thanks in advance for your help! -CJ