2017-03-09 20:40:36 +00:00
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SELECT coalesce(), coalesce(NULL), coalesce(NULL, NULL),
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coalesce(1), coalesce(1, NULL), coalesce(NULL, 1), coalesce(NULL, 1, NULL);
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2018-07-30 09:36:27 +00:00
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SELECT COALESCE(), COALESCE(NULL), COALESCE(1, NULL);
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2017-03-09 20:40:36 +00:00
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SELECT coalesce(number % 2 = 0 ? number : NULL, number % 3 = 0 ? number : NULL, number % 5 = 0 ? number : NULL) AS res, toTypeName(res) FROM system.numbers LIMIT 15;
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SELECT coalesce(number % 2 = 0 ? number : NULL, number % 3 = 0 ? number : NULL, number) AS res, toTypeName(res) FROM system.numbers LIMIT 15;
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SELECT coalesce(number % 2 = 0 ? number : NULL, number % 3 = 0 ? number : NULL, 100) AS res, toTypeName(res) FROM system.numbers LIMIT 15;
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