mirror of
https://github.com/ClickHouse/ClickHouse.git
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22 lines
790 B
MySQL
22 lines
790 B
MySQL
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drop table if exists test1;
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drop table if exists test2;
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drop table if exists test3;
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create table test1 (id UInt64, code String) engine = Memory;
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create table test3 (id UInt64, code String) engine = Memory;
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create table test2 (id UInt64, code String, test1_id UInt64, test3_id UInt64) engine = Memory;
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insert into test1 (id, code) select number, toString(number) FROM numbers(100000);
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insert into test3 (id, code) select number, toString(number) FROM numbers(100000);
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insert into test2 (id, code, test1_id, test3_id) select number, toString(number), number, number FROM numbers(100000);
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select test2.id
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from test1, test2, test3
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where test1.code in ('1', '2', '3')
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and test2.test1_id = test1.id
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and test2.test3_id = test3.id;
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drop table test1;
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drop table test2;
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drop table test3;
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