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19 lines
882 B
SQL
19 lines
882 B
SQL
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 1000000;
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INSERT INTO test.sample2 (x) SELECT number AS x FROM system.numbers LIMIT 2000000;
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CREATE TABLE test.sample_merge AS test.sample1 ENGINE = Merge(test, '^sample\\d$');
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SELECT abs(sum(_sample_factor) - 3000000) / 3000000 < 0.001 FROM test.sample_merge SAMPLE 100000;
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SELECT abs(sum(_sample_factor) - 3000000) / 3000000 < 0.001 FROM merge(test, '^sample\\d$') SAMPLE 100000;
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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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