MySQL UDF

A colleague asked me to install MySQL UDF (MySQL user defined functions) on a server.

So here are my notes on the subject, for a CentOS 6.7 linux box:

First you need to have mysql-devel on your system which install the mysql development headers on /usr/include/mysql/ directory:

# yum -y install mysql-devel

Then download the latest source code of mysqludf_udf:

# wget -c https://raw.githubusercontent.com/mysqludf/lib_mysqludf_udf/master/lib_mysqludf_udf.c

and compile it

# gcc -m64 -fPIC -Wall
        -I/usr/include/mysql -I.
        -L/usr/lib64/libstdc++.so.6
        -shared lib_mysqludf_udf.c
        -o /usr/lib64/mysql/plugin/lib_mysqludf_udf.so

confirm:

# ls -l /usr/lib64/mysql/plugin/lib_mysqludf_udf.so

Restart your MySQL and test it !