ClickHouse/doc/reference/en/functions/logical_functions.rst

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Logical functions
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-----------------
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Logical functions accept any numeric types, but return a UInt8 number equal to 0 or 1.
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Zero as an argument is considered "false," while any non-zero value is considered "true"..
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and, AND operator
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~~~~~~~~~~~~~~~~~
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or, OR operator
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~~~~~~~~~~~~~~~
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not, NOT operator
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~~~~~~~~~~~~~~~~~
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xor
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~~~
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