DB_DataObject eats all my memory

I have a script where I'm doing a lot of sql queries. This script eats memory until it's killed by the OOM-Killer at some point (using much more than 1GB). DB_DataObjects seems to be at fault. I have created a very simple testcase: > for ($i = 1; $i < 50000; $i++) { > $test = new DataObjects_Test; > $test->whereAdd("field2 like '4%'"); > $test->find(); > while ($test->fetch()) { > } > } The Test-Table consists of 100000 lines of random noise. If I run above code it starts out with a ps aux output of: USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND sven 15451 41.0 1.4 94612 15308 pts/7 S+ 00:09 0:00 php ./read.php after a couple of hours it looks like this: USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND sven 15451 73.4 7.4 155560 76160 pts/7 S+ 00:09 382:40 php ./read.php Rewriting my test-script using only the php postgres commands I can run it for hours w/o an increase in memory consumption. Any hints on how to solve this would be appreaciated. I'm using php 4.3.9, postgres 7.4.5 and DB_DataObject 1.7.2 -- mfg sven lankes megabit informationstechnik