A much shorter query!

Co-authored-by: Matt Shanley <[email protected]>

apps/alert_processor/lib/model/query.ex

@@ -250,27 +250,15 @@ defmodule AlertProcessor.Model.Query do
       %__MODULE__{
         label: "Count of Active Users By Number of Active Trips",
         query: """
-        SELECT integers.*
-        FROM generate_series(1, (
-          SELECT COUNT(ttr.id) as trip_count from trips ttr
-          group by ttr.user_id
-          ORDER BY trip_count DESC
-          LIMIT 1
-        )) i
-        CROSS JOIN LATERAL (
-          SELECT i AS active_trips, COUNT(x.*) AS active_users FROM
-          (
-          SELECT u.id FROM users u
-          JOIN trips tr ON tr.user_id = u.id
-          WHERE tr.id = ANY(
-            SELECT DISTINCT ss.trip_id FROM subscriptions ss
-            WHERE ss.paused = false
-          )
-          GROUP BY u.id
-          HAVING COUNT(tr.id) = i
-          )x
-          HAVING COUNT(x) > 0
-        ) integers;
+        select trip_count, count(user_id) as users
+        from (
+          select t.user_id as user_id, count(distinct t.id) as trip_count
+          from trips t
+          join subscriptions s
+            on s.trip_id = t.id and s.paused = false
+          group by t.user_id
+        ) as user_trip_counts
+        group by trip_count;
         """
       }
     ]