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6 lines
307 B
MySQL
6 lines
307 B
MySQL
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DROP TABLE IF EXISTS test.nulls;
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CREATE TABLE test.nulls (d Date, x Nullable(UInt64)) ENGINE = MergeTree(d, d, 8192);
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INSERT INTO test.nulls SELECT toDate('2000-01-01'), number % 10 != 0 ? number : NULL FROM system.numbers LIMIT 10000;
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SELECT count() FROM test.nulls WHERE x IS NULL;
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DROP TABLE test.nulls;
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