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18 lines
582 B
MySQL
18 lines
582 B
MySQL
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-- https://github.com/ClickHouse/ClickHouse/issues/50570
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DROP TABLE IF EXISTS tnul SYNC;
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DROP TABLE IF EXISTS tlc SYNC;
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CREATE TABLE tnul (lc Nullable(String)) ENGINE = MergeTree ORDER BY tuple();
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INSERT INTO tnul VALUES (NULL), ('qwe');
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SELECT 'pure nullable result:';
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SELECT lc FROM tnul WHERE notIn(lc, ('rty', 'uiop'));
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DROP TABLE tnul SYNC;
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CREATE TABLE tlc (lc LowCardinality(Nullable(String))) ENGINE = MergeTree ORDER BY tuple();
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INSERT INTO tlc VALUES (NULL), ('qwe');
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SELECT 'wrapping in LC:';
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SELECT lc FROM tlc WHERE notIn(lc, ('rty', 'uiop'));
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DROP TABLE tlc SYNC;
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