should enum refs be isComponent or not?

I answered my own question at a REPL

they should not be

Should this be called out in the docs? I just spent many frustrating hours trying to figure out why my data was disappearing b/c of this confusion.

Rule of thumb for isComponent: an entity referenced by an isComponent attr should only be referenced once in the whole db

If your data model requires multiple refs it is very likely the attr should not be isComponent

(Referenced once means (d/datoms db :vaet the-entity) is count = 1)

Hi, is this also a good place to ask about Datomic cloud?

I don’t really get the pricing... too much fine print on the official Amazon pricing page https://aws.amazon.com/marketplace/pp/prodview-otb76awcrb7aa

Anyone care to comment about storage and networking costs which are incurred by their usage? Clearly a bit hard to guess how much my data would consume in Datomic storage...

In terms of the Datomic overhead and such

hi @matan — see https://forum.datomic.com/t/datomic-cloud-pricing-fully-loaded-cost/306/4

@stuarthalloway thank for the link! :-) now it only remains how much “domination” is there as the data grows and the number of instances remains constant ;-)

Is there any orthogonal community channel dedicated specifically to Datomic cloud?