mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-09-23 02:00:49 +00:00
39 lines
2.1 KiB
MySQL
39 lines
2.1 KiB
MySQL
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SELECT if(1 = 0, toNullable(toUInt8(0)), NULL) AS x, toTypeName(x);
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SELECT if(1 = 1, toNullable(toUInt8(0)), NULL) AS x, toTypeName(x);
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SELECT if(1 = 1, NULL, toNullable(toUInt8(0))) AS x, toTypeName(x);
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SELECT if(1 = 0, NULL, toNullable(toUInt8(0))) AS x, toTypeName(x);
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SELECT if(toUInt8(0), NULL, toNullable(toUInt8(0))) AS x, if(x = 0, 'ok', 'fail');
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SELECT if(toUInt8(1), NULL, toNullable(toUInt8(0))) AS x, if(x = 0, 'fail', 'ok');
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SELECT if(toUInt8(1), toNullable(toUInt8(0)), NULL) AS x, if(x = 0, 'ok', 'fail');
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SELECT if(toUInt8(0), toNullable(toUInt8(0)), NULL) AS x, if(x = 0, 'fail', 'ok');
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SELECT if(x = 0, 'ok', 'fail') FROM (SELECT toNullable(toUInt8(0)) AS x);
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SELECT if(x = 0, 'fail', 'ok') FROM (SELECT CAST(NULL, 'Nullable(UInt8)') AS x);
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SELECT if(x = 0, 'fail', 'ok') FROM (SELECT materialize(CAST(NULL, 'Nullable(UInt8)')) AS x);
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SELECT if(x = 0, 'ok', 'fail') FROM (SELECT if(toUInt8(1), toNullable(toUInt8(0)), NULL) AS x);
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SELECT if(x = 0, 'fail', 'ok') FROM (SELECT if(toUInt8(0), toNullable(toUInt8(0)), NULL) AS x);
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SELECT if(x = 0, 'ok', 'fail') FROM (SELECT if(toUInt8(0), NULL, toNullable(toUInt8(0))) AS x);
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SELECT if(x = 0, 'fail', 'ok') FROM (SELECT if(toUInt8(1), NULL, toNullable(toUInt8(0))) AS x);
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SELECT toTypeName(x), x, isNull(x), if(x = 0, 'fail', 'ok'), if(x = 1, 'fail', 'ok'), if(x >= 0, 'fail', 'ok')
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FROM (SELECT CAST(NULL, 'Nullable(UInt8)') AS x);
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SELECT toTypeName(x), x, isNull(x), if(x = 0, 'fail', 'ok'), if(x = 1, 'fail', 'ok'), if(x >= 0, 'fail', 'ok')
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FROM (SELECT materialize(CAST(NULL, 'Nullable(UInt8)')) AS x);
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SELECT toTypeName(x), x, isNull(x), if(x = 0, 'fail', 'ok'), if(x = 1, 'fail', 'ok'), if(x >= 0, 'fail', 'ok')
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FROM (SELECT if(1 = 0, toNullable(toUInt8(0)), NULL) AS x);
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SELECT toTypeName(x), x, isNull(x), if(x = 0, 'fail', 'ok'), if(x = 1, 'fail', 'ok'), if(x >= 0, 'fail', 'ok')
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FROM (SELECT materialize(if(1 = 0, toNullable(toUInt8(0)), NULL)) AS x);
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SET join_use_nulls = 1;
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SELECT b_num, isNull(b_num), toTypeName(b_num), b_num = 0, if(b_num = 0, 'fail', 'ok')
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FROM (SELECT 1 k, toInt8(1) a_num) AS x
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LEFT JOIN (SELECT 2 k, toInt8(1) b_num) AS y
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USING (k);
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