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13 lines
519 B
MySQL
13 lines
519 B
MySQL
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DROP TABLE IF EXISTS mt_compact;
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CREATE TABLE mt_compact (d Date, id UInt32, s String)
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ENGINE = MergeTree ORDER BY id PARTITION BY d
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SETTINGS min_bytes_for_wide_part = 10000000, index_granularity = 128;
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INSERT INTO mt_compact SELECT toDate('2020-01-05'), number, toString(number) FROM numbers(1000);
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INSERT INTO mt_compact SELECT toDate('2020-01-06'), number, toString(number) FROM numbers(1000);
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ALTER TABLE mt_compact MODIFY COLUMN s UInt64;
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SELECT sum(s) from mt_compact;
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DROP TABLE IF EXISTS mt_compact;
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