ActiveRecord resource freeing question

[eluser]i_am_using_ci[/eluser]
Hi, I have question related to ActiveRecord module,

is there any way to force mysql query result being freed before script will end it's execution and php will autoclean all used memory?

[eluser]xwero[/eluser]
db class : results see bottom of the page.

[eluser]i_am_using_ci[/eluser]
Thx for help!