dr0zd
64 lines
1.4 KiB
SQL
64 lines
1.4 KiB
SQL
--page_views table
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create table page_views (
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user_id UInt64,
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url String,
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view_time DateTime
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)
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Engine = MergeTree
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Order by (user_id, view_time)
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Partition by toYYYYMM(view_time)
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-- users table
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create table users(
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id UInt64,
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name String,
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updated_at DateTime
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)
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ENGINE = ReplacingMergeTree(updated_at)
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Order by id;
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-- region_sales table
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create table mdrozdov.region_sales(
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region String,
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date Date,
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sales UInt64
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)
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ENGINE = SummingMergeTree
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Partition by toYYYYMM(date)
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Order by (region, date)
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insert into mdrozdov.region_sales (region, date, sales)
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values ('Russia', '2025-01-14', 30), ('Russia', '2025-01-16', 22), ('USA', '2025-01-14', 1400)
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OPTIMIZE TABLE mdrozdov.region_sales FINAL
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-- user_metrics table
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create table mdrozdov.user_metrics (
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region String,
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avg_age_state AggregateFunction(avg, UInt8),
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active_users_state AggregateFunction(uniq, UInt64)
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)
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Engine = AggregatingMergeTree
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Order by region
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INSERT INTO mdrozdov.user_metrics
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SELECT
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'Moscow' AS region,
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avgState(toUInt8(25)) AS avg_age_state,
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uniqState(toUInt64(100)) AS active_users_state
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UNION ALL
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SELECT
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'Moscow',
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avgState(toUInt8(30)),
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uniqState(toUInt64(50))
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UNION ALL
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SELECT
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'SPB',
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avgState(toUInt8(20)),
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uniqState(toUInt64(10));
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SELECT
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region,
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avgMerge(avg_age_state) AS avg_age,
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uniqMerge(active_users_state) AS active_users
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FROM mdrozdov.user_metrics
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GROUP BY region |