Sat Mar 3 20:20:25 EST 2012
So.. With the regular expression matcher it's possible to create
partitions in the set of requests (i.e. projecting onto blog number).
(remember from math class: a projection defines a partition!)
So what I want to do now is to map each request to a blog number, and
count the number of occurrences.
select * from entry
natural join req_blog # project request to id_blog
group by id_blog
order by id_blog limit 10;
Queries start to take a little longer.