Добавил проверку на null в две датамарта

2025-12-13 22:06:10 +03:00
parent 717f705fad
commit aaef806630
2 changed files with 3 additions and 3 deletions
@@ -28,7 +28,7 @@ CREATE MATERIALIZED VIEW user_activity_summary as
        l.viewed_lessons_count,
        l.last_view,
        l.first_view,
-        round(l.viewed_lessons_count::decimal * 100 / en.possible_lessons, 2) as engagement_rate
+        round(l.viewed_lessons_count::decimal * 100 / nullif(en.possible_lessons, 0), 2) as engagement_rate
    from users as u
    join lessons_cte as l on u.id = l.user_id
    join engagement_cte as en on u.id = en.user_id