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19 lines
620 B
SQL
19 lines
620 B
SQL
DROP TABLE IF EXISTS test.mt;
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DROP TABLE IF EXISTS test.buf;
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CREATE TABLE test.mt (a UInt8, d Date) ENGINE = MergeTree(d, a, 1);
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CREATE TABLE test.buf AS test.mt ENGINE = Buffer(test, mt, 1, 100, 100, 1000000, 1000000, 1000000000, 1000000000);
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INSERT INTO test.buf SELECT toUInt8(number) AS a, toDate('2015-01-01') AS d FROM system.numbers LIMIT 1000;
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SELECT count() FROM test.mt;
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SELECT count() FROM test.buf;
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SELECT * FROM test.buf PREWHERE a < 10;
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OPTIMIZE TABLE test.buf;
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SELECT count() FROM test.mt;
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SELECT count() FROM test.buf;
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SELECT * FROM test.buf PREWHERE a < 10;
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DROP TABLE test.buf;
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DROP TABLE test.mt;
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