Yes; Datomic really is great. There's plenty of wonderful stuff I haven't even mentioned, like database as a value, persistent history, snapshots at a timepoint, transaction metadata, smart peer replication etc. It's kind of the best thing since sliced bread. But if you don't need all that jazz and are fine with keeping things in memory for your problem, you may wish to consider DataScript. It's free and open source and has remarkably good coverage of the entity, pull and q APIs, and can run in cljs or clj.
One final note: with respect to "type headache" and "chain[ing] anything to anything", you're right; this is a major benefit over traditional SQL. Attribute are fundamentally polymorphic, which can be super helpful with tricky modelling problems. Chris On Thu, Jan 4, 2018 at 10:48 AM, Ben Kovitz <bkov...@gmail.com> wrote: > On Tuesday, January 2, 2018 at 3:11:45 PM UTC-5, Christopher Small wrote: > > >> http://docs.datomic.com/entities.html >> > > >> http://docs.datomic.com/pull.html >> > > Thanks—this is really good stuff! Not that I expected anything less, but > it's a happy surprise that it applies so well to graphs. Now I'm wondering > if I should just use Datomic rather than borrow ideas from it. > > One thing I'm convinced of now is that it's OK to assign ids to > everything. I was cringing at that idea before, because it seems like an > unnecessary layer of indirection and one more thing that could go wrong. > But clearly Datomic's approach of assigning every "entity" an id enables > some wonderful simplicity, since it enables one to very conveniently chain > entities together. And when basically everything is an entity, that means > you can chain anything to anything—which addresses the "type headache" I > was trying to avoid. > > -- > Ben Kovitz > http://pages.iu.edu/~bkovitz/ > > -- > You received this message because you are subscribed to the Google > Groups "Clojure" group. > To post to this group, send email to clojure@googlegroups.com > Note that posts from new members are moderated - please be patient with > your first post. > To unsubscribe from this group, send email to > clojure+unsubscr...@googlegroups.com > For more options, visit this group at > http://groups.google.com/group/clojure?hl=en > --- > You received this message because you are subscribed to a topic in the > Google Groups "Clojure" group. > To unsubscribe from this topic, visit https://groups.google.com/d/ > topic/clojure/uSwY475pbGA/unsubscribe. > To unsubscribe from this group and all its topics, send an email to > clojure+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com Note that posts from new members are moderated - please be patient with your first post. To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
