3 ms·
It's not just about row versus column. OLAPs are potentially denormalised as well, and sometimes pre-aggregation, such as rolling up by day, by customer. If yo
by delaminator 10mo ago
It's not just about row versus column. OLAPs are potentially denormalised as well, and sometimes pre-aggregation, such as rolling up by day, by customer.
If you really need to get performance you'll be building a star schema.