удалено

2025-12-02 13:59:22 +06:00
parent 3419651d12
commit 0459718ae3
1 changed files with 0 additions and 20 deletions
@@ -1,20 +0,0 @@
 CREATE MATERIALIZED VIEW lesson_popularity_summary
 ENGINE = SummingMergeTree()
 ORDER BY (course_id, lesson_id) AS
 SELECT 
    lv.lesson_id as lesson_id,
    l.title as lesson_title,
    lv.course_id as course_id,
    c.title as course_title,
    count() as total_views,
    uniq(lv.user_id) as unique_users,
    min(lv.viewed_at) as first_view,
    max(lv.viewed_at) as last_view
 FROM fact_lesson_views lv
 LEFT JOIN dim_lesson l ON lv.lesson_id = l.lesson_id
 LEFT JOIN dim_course c ON lv.course_id = c.course_id
 GROUP BY 
    lv.lesson_id,
    l.title,
    lv.course_id,
    c.title;