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+--DROP TABLE mnoskov.inactive_users_summary ON CLUSTER clickhouse_cluster sync;
+CREATE TABLE mnoskov.inactive_users_summary
+ON CLUSTER clickhouse_cluster
+(
+	user_id UInt64,
+	name String,
+	email String,
+	age UInt8,
+	registered_courses_count UInt8,
+	registration_date DateTime
+)
+ENGINE = ReplicatedMergeTree(
+    '/clickhouse/tables/{shard}/mnoskov/inactive_users_summary',
+    '{replica}'
+)
+ORDER BY user_id;
+
+--DROP VIEW mnoskov.mv_inactive_users_summary ON CLUSTER clickhouse_cluster sync;
+CREATE MATERIALIZED VIEW mnoskov.mv_inactive_users_summary
+ON CLUSTER clickhouse_cluster
+TO mnoskov.inactive_users_summary
+AS
+SELECT
+	u.user_id AS user_id,
+	u.name AS name,
+	u.email AS email,
+	u.age AS age,
+	e.registered_courses_count AS registered_courses_count,
+	u.registration_date AS registration_date
+FROM
+	mnoskov.core_dim_user u
+LEFT JOIN (
+	SELECT
+		user_id,
+		count() AS registered_courses_count
+	FROM
+		mnoskov.core_enrollments
+	GROUP BY
+		user_id
+) e ON u.user_id = e.user_id
+WHERE u.user_id NOT IN (SELECT lv.user_id FROM mnoskov.core_fact_lesson_views lv); -- я ломалася тут между NOT IN и NOT EXISTS, но решил оставить первый тк это уже витрины мы делаем, и NULL поидее быть не должно
+
+
+-- Чтение очищение заполнение
+SHOW TABLES FROM mnoskov;
+
+SELECT * FROM mnoskov.core_dim_user;
+SELECT * FROM mnoskov.inactive_users_summary;
+
+TRUNCATE TABLE mnoskov.core_dim_user ON CLUSTER clickhouse_cluster SYNC;
+TRUNCATE TABLE mnoskov.inactive_users_summary ON CLUSTER clickhouse_cluster SYNC;
+
+INSERT INTO mnoskov.core_dim_user (user_id, name, age, email, registration_date)
+VALUES
+(1, 'Alice', 25, 'alice@mail.com', '2023-01-09 23:00:00'),
+(2, 'Bob', 30, 'bob@gmail.com', '2023-02-04 23:00:00'),
+(3, 'Charlie', 22, 'charlie@mail.com', '2023-02-19 23:00:00'),
+(4, 'Diana', 28, 'diana@mail.com', '2023-02-28 23:00:00'),
+(5, 'Ethan', 35, 'ethan@gmail.com', '2023-03-09 23:00:00'),
+(6, 'Frank', 29, 'frank@mail.com', '2023-01-04 23:00:00'),
+(7, 'Grace', 26, 'grace@gmail.com', '2023-01-11 23:00:00'),
+(8, 'Henry', 32, 'henry@mail.com', '2023-01-19 23:00:00'),
+(9, 'Iris', 24, 'iris@gmail.com', '2023-02-09 23:00:00'),
+(10, 'Jack', 27, 'jack@mail.com', '2023-04-14 23:00:00'),
+(11, 'Kelly', 23, 'kelly@gmail.com', '2023-04-19 23:00:00'),
+(12, 'Leo', 31, 'leo@mail.com', '2023-01-14 23:00:00'),
+(13, 'Mia', 26, 'mia@mail.com', '2023-01-17 23:00:00'),
+(14, 'Nina', 28, 'nina@mail.com', '2023-01-07 23:00:00'),
+(15, 'Oscar', 33, 'oscar@gmail.com', '2023-01-09 23:00:00'),
+(16, 'Paul', 29, 'paul@mail.com', '2023-02-14 23:00:00'),
+(17, 'Quinn', 24, 'quinn@gmail.com', '2023-03-19 23:00:00'),
+(18, 'Rita', 27, 'rita@mail.com', '2023-03-31 23:00:00'),
+(19, 'Sam', 30, 'sam@gmail.com', '2023-04-09 23:00:00'),
+(21, 'Tinanal', 22, 'tinanal@mail.com', '2023-04-19 23:02:00')
+(22, 'Anal2', 24, 'tinanal222@mail.com', '2023-04-19 23:22:00');