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18 lines
393 B
MySQL
18 lines
393 B
MySQL
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CREATE TABLE test.test
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(
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dt Date,
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id UInt32,
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val Nullable(UInt32)
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)
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ENGINE = MergeTree(dt, id, 8192);
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insert into test.test (dt, id, val) values ('2017-01-01', 1, 10);
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insert into test.test (dt, id, val) values ('2017-01-01', 1, null);
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insert into test.test (dt, id, val) values ('2017-01-01', 1, 0);
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SELECT count()
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FROM test.test
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WHERE val = 0;
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DROP TABLE IF EXISTS test.test;
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