Debugging SQL queries step by step using MySQL Proxy

Question

I'm using MySQL proxy and the following Lua script to view all the queries that will be send from my program to MySQL.

function read_query( packet )
    if string.byte(packet) == proxy.COM_QUERY then
        print(string.sub(packet, 2))
        print()
    end
end

Is it somehow possible to pause the script each time a query had been received and wait for the user to press a key before continue in order to step through the queries?