ClickHouse/docs/en/query_language/functions/logical_functions.md

# Logical functions

Logical functions accept any numeric types, but return a UInt8 number equal to 0 or 1.

Zero as an argument is considered "false," while any non-zero value is considered "true".

## and, AND operator

## or, OR operator

## not, NOT operator

## xor


[Original article](https://clickhouse.yandex/docs/en/query_language/functions/logical_functions/) <!--hide-->
Sources for english documentation switched to Markdown. Edit page link is fixed too for both language versions of documentation. 2017-12-28 15:13:23 +00:00			`# Logical functions`

			`Logical functions accept any numeric types, but return a UInt8 number equal to 0 or 1.`

			`Zero as an argument is considered "false," while any non-zero value is considered "true".`

			`## and, AND operator`

			`## or, OR operator`

			`## not, NOT operator`

			`## xor`
English translation is updated. 2018-04-23 06:20:21 +00:00
WIP on docs/website (#3383) * CLICKHOUSE-4063: less manual html @ index.md * CLICKHOUSE-4063: recommend markdown="1" in README.md * CLICKHOUSE-4003: manually purge custom.css for now * CLICKHOUSE-4064: expand <details> before any print (including to pdf) * CLICKHOUSE-3927: rearrange interfaces/formats.md a bit * CLICKHOUSE-3306: add few http headers * Remove copy-paste introduced in #3392 * Hopefully better chinese fonts #3392 * get rid of tabs @ custom.css * Apply comments and patch from #3384 * Add jdbc.md to ToC and some translation, though it still looks badly incomplete * minor punctuation * Add some backlinks to official website from mirrors that just blindly take markdown sources * Do not make fonts extra light * find . -name '.md' -type f \| xargs -I{} perl -pi -e 's//g' {} find . -name '.md' -type f \| xargs -I{} perl -pi -e 's/ sql/g' {} Remove outdated stuff from roadmap.md * Not so light font on front page too * Refactor Chinese formats.md to match recent changes in other languages 2018-10-16 10:47:17 +00:00
			`[Original article](https://clickhouse.yandex/docs/en/query_language/functions/logical_functions/) <!--hide-->`