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8 lines
613 B
SQL
8 lines
613 B
SQL
DROP DATABASE IF EXISTS test_buffer;
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CREATE DATABASE test_buffer;
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CREATE TABLE test_buffer.mt (uid UInt64, ts DateTime, val Float64) ENGINE = MergeTree PARTITION BY toDate(ts) ORDER BY (uid, ts);
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CREATE TABLE test_buffer.buf as test_buffer.mt ENGINE = Buffer(test_buffer, mt, 2, 10, 60, 10000, 100000, 1000000, 10000000);
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INSERT INTO test_buffer.buf VALUES (1, '2019-03-01 10:00:00', 0.5), (2, '2019-03-02 10:00:00', 0.15), (1, '2019-03-03 10:00:00', 0.25);
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SELECT count() from test_buffer.buf prewhere ts > toDateTime('2019-03-01 12:00:00') and ts < toDateTime('2019-03-02 12:00:00');
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DROP DATABASE test_buffer;
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