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20 lines
1.1 KiB
MySQL
20 lines
1.1 KiB
MySQL
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SELECT ifNull('x', 'y') AS res, toTypeName(res);
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SELECT ifNull(materialize('x'), materialize('y')) AS res, toTypeName(res);
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SELECT ifNull(toNullable('x'), 'y') AS res, toTypeName(res);
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SELECT ifNull(toNullable('x'), materialize('y')) AS res, toTypeName(res);
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SELECT ifNull('x', toNullable('y')) AS res, toTypeName(res);
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SELECT ifNull(materialize('x'), toNullable('y')) AS res, toTypeName(res);
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SELECT ifNull(toNullable('x'), toNullable('y')) AS res, toTypeName(res);
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SELECT ifNull(toString(number), toString(-number)) AS res, toTypeName(res) FROM system.numbers LIMIT 5;
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SELECT ifNull(nullIf(toString(number), '1'), toString(-number)) AS res, toTypeName(res) FROM system.numbers LIMIT 5;
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SELECT ifNull(toString(number), nullIf(toString(-number), '-3')) AS res, toTypeName(res) FROM system.numbers LIMIT 5;
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SELECT ifNull(nullIf(toString(number), '1'), nullIf(toString(-number), '-3')) AS res, toTypeName(res) FROM system.numbers LIMIT 5;
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SELECT ifNull(NULL, 1) AS res, toTypeName(res);
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SELECT ifNull(1, NULL) AS res, toTypeName(res);
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SELECT ifNull(NULL, NULL) AS res, toTypeName(res);
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