Re:Poll: Facebook usage
by eftpotrm on Sunday September 25, 2011 @07:13AM
(#3035594)
No, it's not significantly more difficult than the existing case.
You have one permissions set - my permissions on my photos. And another permissions set - my friends' visibility sets on their tagging. The display set is the interaction between these two sets, which any database developer should be trivially able to calculate.
I don't for one minute dispute that the scaling issues for calculating these interactions for 750m users are significant, but the core task definitely isn't.
You have one permissions set - my permissions on my photos. And another permissions set - my friends' visibility sets on their tagging. The display set is the interaction between these two sets, which any database developer should be trivially able to calculate.
I don't for one minute dispute that the scaling issues for calculating these interactions for 750m users are significant, but the core task definitely isn't.