Stage 2 summary at 50 accepted trajectories

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

tasks_gen/train/G1071/reference/i_dive_stats.ddls.asddls

@@ -0,0 +1,15 @@
+@AccessControl.authorizationCheck: #NOT_REQUIRED
+@EndUserText.label: 'Dive stats'
+define view entity {{P}}I_DIVE_STATS
+  as select from {{p}}diver as diver
+    inner join      {{p}}dive as dive on dive.diver_id = diver.diver_id
+    left outer join {{p}}site as site on site.site_id  = dive.site_id
+{
+  key diver.diver_id as diver_id,
+      diver.diver_name as diver_name,
+      count( * ) as dive_count,
+      max( site.depth_m ) as deepest_m
+}
+group by
+  diver.diver_id,
+  diver.diver_name