Clojurians Log v2

On second thought, it wouldn’t be a bad idea for this case of an update to allow an empty set (or nil). Updates (identified by the ' annotation on a property) are performed by doing: • a query to find the current value/values of a property • retractions of all existing values found in the previous step • Additions of all the new values You’re just trying to do the first 2 steps and not do anything for the third.

The current error is due to having a subject/predicate, with no objects, which means no triples. But triples are expected, since after all, you’ve defined ⅔ of a triple.

I see, thank you. For my case, having an API for steps 1+2, as well as having one to retract whole entities, would both be useful. Currently I have implemented both using graph and the triplets search. (Though my code only generates the retraction transaction, i.e. [[:db/retract ..], .. ] , which I only transact later.)