> On Sep 12, 2017, at 1:41 PM, Darko Volaric <li...@darko.org> wrote: > > You can implement this by using user defined functions to implement row > "local variables" or "registers". They're single assignment storage that > keeps intermediate results, namely the common subexpressions.
Thanks! That's a very interesting technique. > Note that you would need to order these so they are evaluated in dependency > order, i.e. ensure each name is set before it is got. What's a good way to do that? Since SQL is a non-imperative language there isn't much notion of order of operations. I can imagine using a short-circuiting AND operator, but can I be guaranteed that this will always work? —Jens _______________________________________________ sqlite-users mailing list sqlite-users@mailinglists.sqlite.org http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
