Could you show the expression that causes this exception? I guess that the parameters are not at the right place in your function call, w.r.t. your query.

This is the query that causes it.

(d/q '[:find ?cust-id
       :in $ ?metric
       :where
       [?metric :metric/integration ?integration]
       [?customer :customer/integrations ?integration]
       [?customer :entity/id ?cust-id]] db [:entity/id metric-id])

@vincent.cantin ^

@kenny is it possible that metric-id is bound to a database value instead? (e.g. swapped function args during a refactor)

@gws I don't think so. I tried it locally and the exception is different.

I'm pretty sure the above exception is due to a bug in Datomic related to require not being thread safe.

@kenny is this in an ion or a client app?

Client app

If I have user-groups with many users, and a user has a boolean attribute like :user/activated, how can I compose a query to find just user groups where all users have that attribute true? Something like [:find ?group :where [?group :user-group/users ?u] [?u :user/activated true]] just finds me groups with at least one activated user. I’ve tried using (not ...) and looked for some kind of all predicate without any success.

I can get the desired effect with (count-distinct ?activated) and filtering out groups with counts of 2, but that doesn’t seem like a great solution.

@joshmiller have a look at the missing? predicate: https://docs.datomic.com/cloud/query/query-data-reference.html#missing

or do they all have the attr. but it’s set to false?

Yeah, it’s set for all, but some are true and some are false.

i’d have to poke at it a bit, but i think you can use a :with grouping https://docs.datomic.com/cloud/query/query-data-reference.html#with

which will get you the “bag not set” of values that you can then do an aggregation on

it might be something better handled with a rule or a query function, though

I think you could also do it with a not-join https://docs.datomic.com/cloud/query/query-data-reference.html#not-join

Cool, I’ll take a look at :with

You may have to do nested queries using with

I tried not-join without any success, via something like: (not-join [?group ?user] [?user :user/activated false]) but that didn’t do it for me

Yeah, I'd have to work thru it but I'm on my cell right now :)

No worries, thanks for the leads