filter products attributes before split
I wonder how this is done 

http://www.zappos.com/adidas-superstar 

So in the left column there are filters with products count

In the right section there are products listed by page.


so there is a primary query that ask filters and get products.... and then populate filter count only like. ... and products_id IN (so only some filters) .... and then they split  query result ?

So two queries ?  or this can be done in one query.
filter products attributes before split
===

I wonder how this is done 

http://www.zappos.com/adidas-superstar 

So in the left column there are filters with products count

In the right section there are products listed by page.


so there is a primary query that ask filters and get products.... and then populate filter count only like. ... and products_id IN (so only some filters) .... and then they split  query result ?

So two queries ?  or this can be done in one query.