2019-04-16 14:13:13 +00:00
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DROP TABLE IF EXISTS alter;
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CREATE TABLE alter (`boolean_false` Nullable(String)) ENGINE = MergeTree ORDER BY tuple();
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2018-07-14 23:45:51 +00:00
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2019-04-16 14:13:13 +00:00
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INSERT INTO alter (`boolean_false`) VALUES (NULL), (''), ('123');
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SELECT * FROM alter;
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SELECT * FROM alter ORDER BY boolean_false NULLS LAST;
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2018-07-14 23:45:51 +00:00
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2019-04-16 14:13:13 +00:00
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ALTER TABLE alter MODIFY COLUMN `boolean_false` Nullable(UInt8);
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SELECT * FROM alter;
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SELECT * FROM alter ORDER BY boolean_false NULLS LAST;
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2018-07-14 23:45:51 +00:00
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2019-04-16 14:13:13 +00:00
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DROP TABLE alter;
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