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45 lines
1.0 KiB
SQL
45 lines
1.0 KiB
SQL
-- https://github.com/ClickHouse/ClickHouse/issues/10894
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DROP TABLE IF EXISTS event;
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DROP TABLE IF EXISTS user;
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DROP TABLE IF EXISTS mv;
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CREATE TABLE event (
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`event_time` DateTime,
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`event_name` String,
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`user_id` String
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)
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ENGINE = MergeTree()
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ORDER BY (event_time, event_name);
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CREATE TABLE user (
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`user_id` String,
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`user_type` String
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)
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ENGINE = MergeTree()
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ORDER BY (user_id);
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INSERT INTO event VALUES ('2020-05-01 00:00:01', 'install', '1'), ('2020-05-01 00:00:02', 'install', '2'), ('2020-05-01 00:00:03', 'install', '3');
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INSERT INTO user VALUES ('1', 'type_1'), ('2', 'type_2'), ('3', 'type_3');
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CREATE MATERIALIZED VIEW mv
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(
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`event_time` DateTime,
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`event_name` String,
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`user_id` String,
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`user_type` String
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)
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ENGINE = MergeTree()
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ORDER BY (event_time, event_name) POPULATE AS
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SELECT
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e.event_time,
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e.event_name,
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e.user_id,
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u.user_type
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FROM event e
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INNER JOIN user u ON u.user_id = e.user_id;
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DROP TABLE IF EXISTS event;
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DROP TABLE IF EXISTS user;
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DROP TABLE IF EXISTS mv; |