Исправил недочёты после код-ревью.

2 - GreenPlum-Pet-project/7.1 DDL_CREATE_dm.lesson_popularity_summary.SQL

@@ -26,6 +26,4 @@ from
 		flv.course_id
 		) as t1
 right join core.dim_lesson dl on dl.lesson_id = t1.lesson_id
-left join core.dim_course dc on t1.course_id = dc.course_id
-ORDER by
-	t1.lesson_id;
+left join core.dim_course dc on t1.course_id = dc.course_id;

2 - GreenPlum-Pet-project/7.2 DDL_CREATE_dm.inactive_users_summary.SQL

@@ -4,7 +4,7 @@ DISTRIBUTED BY (user_id)
 AS
 select
 	du.user_id as user_id,
-	du."name" as user_name,
+	du.name as user_name,
 	du.email as email,
 	du.age as age,
 	COALESCE(e.enrollments_count, 0) as enrollments_count,

2 - GreenPlum-Pet-project/7.3 DDL_CREATE_dm.course_completion_rate.SQL

@@ -6,7 +6,7 @@ with activity_users as (
 select
 	e.user_id as user_id,
 	e.course_id as course_id,
-	COUNT(flv.viewed_at) as lessons_viewed
+	COUNT(DISTINCT flv.viewed_at) as lessons_viewed
 from
 	core.enrollments e
 left join core.dim_lesson dl on e.course_id = dl.course_id
@@ -23,7 +23,7 @@ course2 as (
 		course_id)
 select
 	au.user_id as user_id,
-	du."name" as user_name,
+	du.name as user_name,
 	au.course_id as course_id,
 	dc.title as course_title,
 	c2.lessons_in_course as lessons_in_course,