ClickHouse/docs/en/data_types/boolean.rst

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Boolean
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There is no separate type for boolean values. For them, the type UInt8 is used, in which only the values 0 and 1 are used.
Data types 2017-04-26 18:10:25 +00:00			`Boolean`
Initial commit if EN docs 2017-04-03 19:49:50 +00:00			`---------------`

Data types 2017-04-26 18:10:25 +00:00			`There is no separate type for boolean values. For them, the type UInt8 is used, in which only the values 0 and 1 are used.`