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Merge branch 'alexey-sm-DOCSUP-13375-document-CREATE-DROP-FUNCTION' of https://github.com/lehasm/ClickHouse into alexey-sm-DOCSUP-13375-document-CREATE-DROP-FUNCTION

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Alexey 2021-09-01 18:37:42 +00:00
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docs/en/sql-reference/statements/create/function.md
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@ -5,7 +5,7 @@ toc_title: FUNCTION
# CREATE FUNCTION {#create-function} # CREATE FUNCTION {#create-function}
Creates a user defined function from a lambda expression. The expression must consist of function parameters, constants, operators or other function calls. Creates a user defined function from a lambda expression. The expression must consist of function parameters, constants, operators, or other function calls.
**Syntax** **Syntax**
@ -14,7 +14,7 @@ CREATE FUNCTION name AS (parameter0, ...) -> expression
``` ```
A function can have an arbitrary number of parameters. A function can have an arbitrary number of parameters.
There are a few restrictions. There are a few restrictions:
- The name of a function must be unique among user defined and system functions. - The name of a function must be unique among user defined and system functions.
- Recursive functions are not allowed. - Recursive functions are not allowed.