To the point, this two days in learning, the UDF mysql environment: Linux centos problem: through the g + + compiler generated. So file, unable to load in the mysql plugin,
1. First of all, I generate. So the file and cp to mysql plugin directory
2. Create the function in the mysql client json_object returns the string soname 'udf_redis. So;

And then an Error: Error Code: 1127. Can 't find symbol' json_object 'library in

Here is my makefile



Here is the project


The file of cp to mysql plugin


The function in the query. So the file


The definition of the function


The mysql client load instruction


The reason for the error: