How to change zapata.conf to MySQL table using realtime?

Hi,
I tried to change zapata.conf to MySQL table, but I didn’t get it work??
What is the proper way to do that???
Any idea?! :question:

I had create ast_config table and insert the following:

id filename category var_name var_value
33 zapata.conf channels context itrc
34 zapata.conf channels signalling fxs_ks
35 zapata.conf channels channel 4

in /etc/asterisk/extconfig.conf:-
[settings]
zapata.conf => mysql,DBname,ast_config

But still not working!!
What can I do?!