tree 82b864acf23cdeb8f9ac36c9d4604d33b35ed73d
parent 477a384bc8e4edac0a79c90dcf94754ae9069937
author Avery Pennarun <apenwarr@gmail.com> 1353913433 -0500
committer Avery Pennarun <apenwarr@gmail.com> 1355123014 -0500

group, pivot, and treegroup now allow you to specify aggregate functions.

...like sum(), count() and so on.  Additional interesting ones are only()
(which deliberately crashes if there's more than one value, indicating that
you should revise your query), cat() (which concatenates all the values into
a single string), and first() (which just pulls the first value when there's
more than one).