User-Defined Functions

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A user-defined function (UDF) is a way to extend MariaDB with a new function that works like a native (built-in) MariaDB function such as ABS( ) or CONCAT( ).

Statements making use of user-defined functions are not safe for replication.

For an example, see sql/ in the source tree. For a collection of existing UDFs go to the UDF Repository on GitHub.

There are alternative ways to add a new function: writing a native function, which requires modifying and compiling the server source code; or writing a stored function.

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