Datomic and Mentat are primarily set oriented, but there's some data that really wants to be ordered and the order is arbitrary. Datomic users tend to handle this with a "transaction function" that atomically updates order attributes during a transaction. (See, for example, https://augustl.com/blog/2013/ordering_cardinality_many_in_datomic/.) That approach is probably possible in Mentat, but it's not easy to arrange right now. This is mostly a TODO item for @rnewman to set down his thoughts on what we should do here.
Datomic and Mentat are primarily set oriented, but there's some data that really wants to be ordered and the order is arbitrary. Datomic users tend to handle this with a "transaction function" that atomically updates order attributes during a transaction. (See, for example, https://augustl.com/blog/2013/ordering_cardinality_many_in_datomic/.) That approach is probably possible in Mentat, but it's not easy to arrange right now. This is mostly a TODO item for @rnewman to set down his thoughts on what we should do here.