fixed mistakes
This commit is contained in:
Dmitry Medvedev
@@ -1,152 +1,156 @@
|
||||
CREATE MATERIALIZED VIEW conversion_funnel AS
|
||||
CREATE MATERIALIZED
|
||||
VIEW conversion_funnel AS
|
||||
|
||||
-- CTE какое кол-во человек записалось на курс
|
||||
WITH
|
||||
WITH
|
||||
|
||||
enrolled_users AS (
|
||||
SELECT
|
||||
course_id,
|
||||
COUNT(*) AS enrolled
|
||||
FROM pet_enrollments pe
|
||||
GROUP BY course_id
|
||||
),
|
||||
enrolled_users
|
||||
AS
|
||||
(
|
||||
SELECT
|
||||
course_id,
|
||||
user_id,
|
||||
COUNT(*) OVER (PARTITION BY course_id) AS enrolled_count
|
||||
FROM pet_enrollments pe
|
||||
),
|
||||
|
||||
-- СТЕ на начавших смотреть курс
|
||||
started_users AS (
|
||||
SELECT
|
||||
pc.id AS course_id,
|
||||
COUNT(DISTINCT plv.user_id) AS started
|
||||
FROM pet_courses pc
|
||||
LEFT JOIN pet_lessons pl
|
||||
ON pc.id = pl.course_id
|
||||
LEFT JOIN pet_lesson_views plv
|
||||
ON plv.lesson_id = pl.id
|
||||
GROUP BY pc.id
|
||||
),
|
||||
-- СТЕ на начавших смотреть курс
|
||||
started_users
|
||||
AS
|
||||
(
|
||||
SELECT
|
||||
eu.course_id,
|
||||
COUNT(DISTINCT plv.user_id) AS started
|
||||
FROM enrolled_users eu -- Базой берем записанных пользователей
|
||||
LEFT JOIN pet_lessons pl
|
||||
ON eu.course_id = pl.course_id
|
||||
LEFT JOIN pet_lesson_views plv
|
||||
ON plv.lesson_id = pl.id AND plv.user_id = eu.user_id
|
||||
-- Проверяем, что смотрел именно записанный юзер
|
||||
GROUP BY eu.course_id
|
||||
),
|
||||
|
||||
|
||||
--СТЕ на кол-во просмотров курса и прогресс по курсу
|
||||
user_progress AS (
|
||||
SELECT
|
||||
pc.id AS course_id,
|
||||
plv.user_id,
|
||||
COUNT(DISTINCT lesson_id) AS count_views,
|
||||
count_lesson_in_course.count_lesson_in_course AS count_lesson_in_course,
|
||||
COUNT(DISTINCT lesson_id) * 1.0 / count_lesson_in_course AS progress
|
||||
|
||||
FROM pet_courses pc
|
||||
|
||||
LEFT JOIN pet_lessons pl
|
||||
ON pl.course_id = pc.id
|
||||
|
||||
LEFT JOIN pet_lesson_views plv
|
||||
ON plv.lesson_id = pl.id
|
||||
|
||||
LEFT JOIN (
|
||||
SELECT
|
||||
pl.course_id,
|
||||
COUNT(*) AS count_lesson_in_course
|
||||
FROM pet_lessons pl
|
||||
GROUP BY pl.course_id
|
||||
--СТЕ на кол-во просмотров курса и прогресс по курсу
|
||||
user_progress
|
||||
AS
|
||||
(
|
||||
SELECT
|
||||
eu.course_id,
|
||||
eu.user_id,
|
||||
COUNT(DISTINCT plv.lesson_id) * 1.0 / count_lesson_in_course.count_lesson_in_course AS progress
|
||||
FROM enrolled_users eu -- Базой берем записанных пользователей
|
||||
LEFT JOIN pet_lessons pl
|
||||
ON pl.course_id = eu.course_id
|
||||
LEFT JOIN pet_lesson_views plv
|
||||
ON plv.lesson_id = pl.id AND plv.user_id = eu.user_id -- Просмотры могут быть NULL, если записался, но не смотрел
|
||||
LEFT JOIN (
|
||||
SELECT
|
||||
pl.course_id,
|
||||
COUNT(*) AS count_lesson_in_course
|
||||
FROM pet_lessons pl
|
||||
GROUP BY pl.course_id
|
||||
) AS count_lesson_in_course
|
||||
ON count_lesson_in_course.course_id = pc.id
|
||||
ON count_lesson_in_course.course_id = eu.course_id
|
||||
GROUP BY eu.course_id, eu.user_id, count_lesson_in_course.count_lesson_in_course
|
||||
),
|
||||
|
||||
main_table
|
||||
AS
|
||||
(
|
||||
SELECT
|
||||
pc.id AS course_id,
|
||||
pc.title AS course_title,
|
||||
'registered' AS stage_name,
|
||||
0 AS stage_order,
|
||||
(SELECT COUNT(*)
|
||||
FROM pet_users pu) AS users_count,
|
||||
ROUND(100, 2) || '%' AS conversion_from_previous,
|
||||
ROUND(100, 2) || '%' AS conversion_from_start
|
||||
|
||||
GROUP BY pc.id, plv.user_id, count_lesson_in_course
|
||||
|
||||
),
|
||||
FROM pet_courses pc
|
||||
|
||||
main_table AS (
|
||||
SELECT
|
||||
pc.id AS course_id,
|
||||
pc.title AS course_title,
|
||||
'registered' AS stage_name,
|
||||
0 AS stage_order,
|
||||
(SELECT COUNT(*) FROM pet_users pu) AS users_count,
|
||||
ROUND(100, 2) || '%' AS conversion_from_previous,
|
||||
ROUND(100, 2) || '%' AS conversion_from_start
|
||||
|
||||
FROM pet_courses pc
|
||||
|
||||
UNION ALL
|
||||
|
||||
SELECT
|
||||
pc.id AS course_id,
|
||||
pc.title AS course_title,
|
||||
'enrolled' AS stage_name,
|
||||
1 AS stage_order,
|
||||
enrolled_users.enrolled,
|
||||
ROUND(enrolled_users.enrolled * 100.0 / (SELECT COUNT(*) FROM pet_users pu), 2) || '%' AS conversion_from_previous,
|
||||
ROUND(enrolled_users.enrolled * 100.0 / (SELECT COUNT(*) FROM pet_users pu), 2) || '%' AS conversion_from_start
|
||||
|
||||
FROM pet_courses pc
|
||||
LEFT JOIN enrolled_users
|
||||
ON enrolled_users.course_id = pc.id
|
||||
|
||||
|
||||
UNION ALL
|
||||
|
||||
SELECT
|
||||
pc.id AS course_id,
|
||||
pc.title AS course_title,
|
||||
'started' AS stage_name,
|
||||
2 AS stage_order,
|
||||
started_users.started,
|
||||
ROUND(started_users.started * 100.0 / enrolled_users.enrolled, 2) || '%' AS conversion_from_previous,
|
||||
ROUND(started_users.started * 100.0 / (SELECT COUNT(*) FROM pet_users pu), 2) || '%' AS conversion_from_start
|
||||
|
||||
FROM pet_courses pc
|
||||
LEFT JOIN started_users
|
||||
ON started_users.course_id = pc.id
|
||||
LEFT JOIN enrolled_users
|
||||
ON enrolled_users.course_id = pc.id
|
||||
|
||||
UNION ALL
|
||||
|
||||
SELECT
|
||||
pc.id AS course_id,
|
||||
pc.title AS course_title,
|
||||
'mid_progress' AS stage_name,
|
||||
3 AS stage_order,
|
||||
( SELECT COUNT(*) FROM user_progress
|
||||
WHERE user_progress.course_id = pc.id AND user_progress.progress >= 0.5
|
||||
),
|
||||
ROUND(( SELECT COUNT(*) FROM user_progress
|
||||
WHERE user_progress.course_id = pc.id AND user_progress.progress >= 0.5) * 100.0 / started_users.started, 2) || '%' AS conversion_from_previous,
|
||||
ROUND(( SELECT COUNT(*) FROM user_progress
|
||||
WHERE user_progress.course_id = pc.id AND user_progress.progress >= 0.5) * 100.0 / (SELECT COUNT(*) FROM pet_users pu), 2) || '%' AS conversion_from_start
|
||||
|
||||
FROM pet_courses pc
|
||||
LEFT JOIN started_users
|
||||
ON started_users.course_id = pc.id
|
||||
|
||||
UNION ALL
|
||||
|
||||
SELECT
|
||||
pc.id AS course_id,
|
||||
pc.title AS course_title,
|
||||
'completed' AS stage_name,
|
||||
4 AS stage_order,
|
||||
( SELECT COUNT(*) FROM user_progress
|
||||
WHERE user_progress.course_id = pc.id AND user_progress.progress >= 1),
|
||||
ROUND(( SELECT COUNT(*) FROM user_progress
|
||||
WHERE user_progress.course_id = pc.id AND user_progress.progress >= 1) * 100.0 /
|
||||
( SELECT COUNT(*) FROM user_progress
|
||||
WHERE user_progress.course_id = pc.id AND user_progress.progress >= 0.5), 2) || '%' AS conversion_from_previous,
|
||||
ROUND(( SELECT COUNT(*) FROM user_progress
|
||||
WHERE user_progress.course_id = pc.id AND user_progress.progress >= 1) * 100.0 /
|
||||
(SELECT COUNT(*) FROM pet_users pu), 2) || '%' AS conversion_from_start
|
||||
FROM pet_courses pc
|
||||
|
||||
ORDER BY course_id, stage_order
|
||||
)
|
||||
|
||||
SELECT
|
||||
pc.id AS course_id,
|
||||
pc.title AS course_title,
|
||||
'enrolled' AS stage_name,
|
||||
1 AS stage_order,
|
||||
COALESCE(eu.enrolled_count, 0),
|
||||
ROUND(COALESCE(eu.enrolled_count, 0) * 100.0 / NULLIF((SELECT COUNT(*) FROM pet_users), 0), 2) || '%' AS conversion_from_previous,
|
||||
ROUND(COALESCE(eu.enrolled_count, 0) * 100.0 / NULLIF((SELECT COUNT(*) FROM pet_users), 0), 2) || '%' AS conversion_from_start
|
||||
FROM pet_courses pc
|
||||
LEFT JOIN (SELECT course_id, MAX(enrolled_count) AS enrolled_count
|
||||
FROM enrolled_users
|
||||
GROUP BY course_id) eu
|
||||
ON eu.course_id = pc.id
|
||||
|
||||
|
||||
UNION ALL
|
||||
|
||||
SELECT
|
||||
pc.id AS course_id,
|
||||
pc.title AS course_title,
|
||||
'started' AS stage_name,
|
||||
2 AS stage_order,
|
||||
COALESCE(su.started, 0),
|
||||
ROUND(COALESCE(su.started, 0) * 100.0 / NULLIF(eu.enrolled_count, 0), 2) || '%' AS conversion_from_previous,
|
||||
ROUND(COALESCE(su.started, 0) * 100.0 / NULLIF((SELECT COUNT(*) FROM pet_users), 0), 2) || '%' AS conversion_from_start
|
||||
FROM pet_courses pc
|
||||
LEFT JOIN (SELECT course_id, MAX(enrolled_count) AS enrolled_count
|
||||
FROM enrolled_users
|
||||
GROUP BY course_id) eu
|
||||
ON eu.course_id = pc.id
|
||||
LEFT JOIN started_users su
|
||||
ON su.course_id = pc.id
|
||||
|
||||
UNION ALL
|
||||
|
||||
SELECT
|
||||
pc.id AS course_id,
|
||||
pc.title AS course_title,
|
||||
'mid_progress' AS stage_name,
|
||||
3 AS stage_order,
|
||||
(SELECT COUNT(*)
|
||||
FROM user_progress up
|
||||
WHERE up.course_id = pc.id AND up.progress >= 0.5),
|
||||
ROUND((SELECT COUNT(*)
|
||||
FROM user_progress up
|
||||
WHERE up.course_id = pc.id AND up.progress >= 0.5) * 100.0 / NULLIF(su.started, 0), 2) || '%' AS conversion_from_previous,
|
||||
ROUND((SELECT COUNT(*)
|
||||
FROM user_progress up
|
||||
WHERE up.course_id = pc.id AND up.progress >= 0.5) * 100.0 / NULLIF((SELECT COUNT(*) FROM pet_users), 0), 2) || '%' AS conversion_from_start
|
||||
FROM pet_courses pc
|
||||
LEFT JOIN started_users su
|
||||
ON su.course_id = pc.id
|
||||
|
||||
UNION ALL
|
||||
|
||||
SELECT
|
||||
pc.id AS course_id,
|
||||
pc.title AS course_title,
|
||||
'completed' AS stage_name,
|
||||
4 AS stage_order,
|
||||
(SELECT COUNT(*)
|
||||
FROM user_progress up
|
||||
WHERE up.course_id = pc.id AND up.progress >= 1),
|
||||
ROUND((SELECT COUNT(*)
|
||||
FROM user_progress up
|
||||
WHERE up.course_id = pc.id AND up.progress >= 1) * 100.0 / NULLIF((SELECT COUNT(*) FROM user_progress up WHERE up.course_id = pc.id AND up.progress >= 0.5), 0), 2) || '%' AS conversion_from_previous,
|
||||
ROUND((SELECT COUNT(*)
|
||||
FROM user_progress up
|
||||
WHERE up.course_id = pc.id AND up.progress >= 1) * 100.0 / NULLIF((SELECT COUNT(*) FROM pet_users), 0), 2) || '%' AS conversion_from_start
|
||||
FROM pet_courses pc
|
||||
)
|
||||
-- main select
|
||||
SELECT
|
||||
SELECT
|
||||
course_id,
|
||||
course_title,
|
||||
stage_name,
|
||||
users_count,
|
||||
conversion_from_previous,
|
||||
conversion_from_start
|
||||
|
||||
FROM main_table;
|
||||
|
||||
FROM main_table
|
||||
ORDER BY course_id, stage_order;
|
||||
Reference in New Issue
Block a user