I always understood the joins were one of the most expensive RDBMS operations. With this in mind, I'm wondering whether I should use a join ( JCR-JQOM ) or do two independent searches and combine the results myself. Or if there is even a difference.
In my search, I need to hit two nodes of two types, which implies a join. However, I could execute to single selector queries, one for each node type. Should it matter performance wise?
