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10 lines
317 B
MySQL
10 lines
317 B
MySQL
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DROP TABLE IF EXISTS t;
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CREATE TABLE t (a Int, b Int, c Int) ENGINE = MergeTree ORDER BY tuple();
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INSERT INTO t SELECT number, number * 2, number * 3 FROM numbers(100);
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SELECT count() FROM t PREWHERE NOT ignore(a) WHERE b > 0;
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SELECT sum(a) FROM t PREWHERE isNotNull(a) WHERE isNotNull(b) AND c > 0;
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DROP TABLE t;
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