[Mapserver-users] TILEINDEX question

[Jerl Simpson]

I keep seeing this term TILEINDEX and I have yet to find what it 
actually is, or what it provides.

I am hoping it helps index the maps, so that when I look at a small 
section of my entire map, it indexes this and speeds up the maps.  And 
doesn't look at the entire US to draw a small area of say, Long Island.

Can someone point me to a more detailed explanation of this feature?

Thanks,

Jerl