you might consider [... :where ... [(untuple ?period) [?starts ?ends]] ...]

that’s exactly what I wanted… the docs for untuple confused me

I'm trying to run tests in github actions (just clojure -A:test command) and it seems it doesn't find datomic jars (I have the s3 releases bucket as a repo)

In Datomic cloud, is it possible to do a dry run of a retractEntity. That is, have it return what it would retract but not actual do the retraction?

@m0smith use https://docs.datomic.com/client-api/datomic.client.api.html#var-with and with-db

Thanks @joe.lane! That did the trick

https://forum.datomic.com/t/datomic-cloud-616-8879/1364

datomic cloud question: We are attempting to set up a new cloudformation stack of an existing system (existing ions code, datomic schema, and data) The stack is setup, schema is transacted and we're attempting to confirm that data is loaded. When executing a query via HTTP through API gateway an exception is thrown. It appears to happen on the invocation to datomic.client.api/connect. The relevant stack trace lines are:

[
                "datomic.anomalies$throw_if_anom",
                "invoke",
                "anomalies.clj",
                113
            ],
            [
                "datomic.client.impl.local.Client",
                "connect",
                "local.clj",
                192
            ],
            [
                "datomic.client.api$connect",
                "invokeStatic",
                "api.clj",
                133
            ],

"Cause": "Supplied AttributeValue is empty, must contain exactly one of the supported datatypes (Service: AmazonDynamoDBv2; Status Code: 400; Error Code: ValidationException; Request ID: JF41UQTURAKQ0ITO8LFP94LBEVVV4KQNSO5AEMVJF66Q9)"
                        }
                    }
                },
                "At": [
                    "datomic.anomalies$throw_if_anom",
                    "invokeStatic",
                    "anomalies.clj",
                    119
                ]

(defn cloud-db-config []
  {:server-type :ion
   :region      (ssm/get-ssm-param "region")
   :system      (ssm/get-ssm-param "system")
   :endpoint    (ssm/get-db-endpoint)
   :timeout     (ssm/get-ssm-param "timeout")
   :proxy-port  8182})