stage 1 tables

2026-01-31 01:16:20 +07:00
parent 1012c43304
commit 73988517db
1 changed files with 96 additions and 0 deletions
@@ -0,0 +1,96 @@
 -- удалить таблицу если раньше создавали
 DROP TABLE IF EXISTS mdrozdov.core_fact_lesson_views
 ON CLUSTER clickhouse_cluster;
 -- таблицы измерений
 -- user dimention
 CREATE TABLE mdrozdov.core_dim_user
 ON CLUSTER clickhouse_cluster
 (
    user_id Int32,
    name String,
    age Int32,
    email String,
    registration_date Date
 )
 ENGINE = ReplicatedMergeTree(
    '/clickhouse/tables/{shard}/mdrozdov/core_dim_user',
    '{replica}'
 )
 ORDER BY user_id;
 -- course dimention
 CREATE TABLE mdrozdov.core_dim_course
 ON CLUSTER clickhouse_cluster
 (
    course_id Int32,
    title String,
    category String
 )
 ENGINE = ReplicatedMergeTree(
    '/clickhouse/tables/{shard}/mdrozdov/core_dim_course',
    '{replica}'
 )
 ORDER BY course_id;
 -- lesson dimention
 CREATE TABLE mdrozdov.core_dim_lesson
 ON CLUSTER clickhouse_cluster
 (
    lesson_id Int32,
    title String,
    duration_min Int32,
    course_id String,
 )
 ENGINE = ReplicatedMergeTree(
    '/clickhouse/tables/{shard}/mdrozdov/core_dim_lesson',
    '{replica}'
 )
 ORDER BY course_id;
 -- date dimention
 CREATE TABLE mdrozdov.core_dim_date
 ON CLUSTER clickhouse_cluster
 (
    date DATE,
 	year Int32,
 	month Int32,
 	day Int32,
 	weekday String
 )
 ENGINE = ReplicatedMergeTree(
    '/clickhouse/tables/{shard}/mdrozdov/core_dim_date',
    '{replica}'
 )
 ORDER BY date;
 -- таблицы фактов
 -- core_enrollments
 CREATE TABLE mdrozdov.core_enrollments
 ON CLUSTER clickhouse_cluster
 (
    user_id Int32,
    course_id Int32,
    enrolled_at DateTime64(3)
 )
 ENGINE = ReplicatedMergeTree(
    '/clickhouse/tables/{shard}/mdrozdov/core_enrollments',
    '{replica}'
 )
 ORDER BY course_id;
 -- core_fact_lesson_views
 CREATE TABLE mdrozdov.core_fact_lesson_views
 ON CLUSTER clickhouse_cluser
 (
    user_id Int32, 
    lesson_id Int32,
    course_id Int32,
    viewed_at DateTime64(3)
 )
 ENGINE = ReplicatedMergeTree(
    '/clickhouse/tables/{shard}/mdrozdov/core_fact_lesson_views',
    '{replica}'
 )
 ORDER BY course_id;