Hey!
I think I solved this:

select 11 latest visitors
count to see if it returned 11 records,

if (count == 11){
get the oldest (of the 11) visitors time
delete everything from that record and older than that
}
else{}

Pros: max 2 queries

If i am missing anything or you see any problem in my logic, please point it
out.

Thanks,
Ryan



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