Using new protocols passed all tests on first try

Author: cnuernber

deps.edn

@@ -1,6 +1,6 @@
 {:paths ["src" "resources" "target/classes"]
  :deps {;;org.clojure/clojure {:mvn/version "1.11.1"}
-        cnuernber/dtype-next {:mvn/version "10.145"}
+        cnuernber/dtype-next {:mvn/version "10.147-SNAPSHOT"}
         techascent/tech.io {:mvn/version "4.31"
                             :exclusions [org.apache.commons/commons-compress]}
         org.apache.datasketches/datasketches-java {:mvn/version "4.2.0"}

test/tech/v3/dataset/reductions_test.clj

@@ -230,9 +230,7 @@
   [ds]
   (->> (ds/row-mapcat ds tally-days-as-year-months
                       ;;generate a sequence of datasets
-                      {:result-type :as-seq
-                       :parser-fn {:count :int32
-                                   :year-month :object}})
+                      {:result-type :as-seq})
        ;;sequence of datasets
        (ds-reduce/group-by-column-agg
         [:simulation :placement :year-month]