mirror of
https://github.com/ClickHouse/ClickHouse.git
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19 lines
747 B
MySQL
19 lines
747 B
MySQL
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DROP TABLE IF EXISTS test.sample1;
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DROP TABLE IF EXISTS test.sample2;
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DROP TABLE IF EXISTS test.sample_merge;
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CREATE TABLE test.sample1 (x UInt64, d Date DEFAULT today()) ENGINE = MergeTree(d, intHash64(x), intHash64(x), 10);
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CREATE TABLE test.sample2 (x UInt64, d Date DEFAULT today()) ENGINE = MergeTree(d, intHash64(x), intHash64(x), 10);
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INSERT INTO test.sample1 (x) SELECT number AS x FROM system.numbers LIMIT 1000;
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INSERT INTO test.sample2 (x) SELECT number AS x FROM system.numbers LIMIT 2000;
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CREATE TABLE test.sample_merge AS test.sample1 ENGINE = Merge(test, '^sample\\d$');
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SET max_threads = 1;
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SELECT _sample_factor FROM merge(test, '^sample\\d$');
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DROP TABLE test.sample1;
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DROP TABLE test.sample2;
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DROP TABLE test.sample_merge;
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