added matherialized view pet project platform summary

2026-06-20 14:13:21 +05:00
parent 0613f3ee31
commit 94965703a3
2 changed files with 21 additions and 2 deletions
@@ -0,0 +1,20 @@
+CREATE MATERIALIZED VIEW platform_summary AS
+
+WITH stats AS (
+	SELECT 
+		(SELECT COUNT(*) total_users FROM pet_users pu) AS total_users,
+		(SELECT COUNT(*) total_courses FROM pet_courses pc) AS total_courses,
+		(SELECT COUNT(*) total_lessons FROM pet_lessons pl) AS total_lessons,
+		(SELECT COUNT(DISTINCT user_id) FROM pet_lesson_views plv) AS users_with_views,
+		(SELECT COUNT(*) FROM pet_lesson_views plv) AS total_views
+)
+
+SELECT
+	total_users,
+	total_courses,
+	total_lessons, 
+	users_with_views,
+	
+	ROUND((total_lessons * 1.0 / total_courses), 2) AS avg_lessons_per_course,
+	ROUND((total_views * 1.0 / total_lessons), 2) AS avg_views_per_lesson
+FROM stats;