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14 lines
427 B
MySQL
14 lines
427 B
MySQL
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-- Tags: no-fasttest
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-- no-fasttest: 'countmin' sketches need a 3rd party library
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SET allow_experimental_statistics = 1;
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SET allow_statistics_optimize = 1;
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CREATE TABLE tab (c Nullable(Int)) ENGINE = MergeTree() ORDER BY tuple();
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INSERT INTO tab (c) VALUES (1);
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DELETE FROM tab WHERE TRUE;
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INSERT INTO tab (c) VALUES (2);
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ALTER TABLE tab ADD STATISTICS c TYPE countmin;
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OPTIMIZE TABLE tab;
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SELECT 1 FROM tab WHERE tab.c = 0;
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