Re: 8.1 and syntax checking at create time

I am new to this hacker's job. What I was looking for was to record

the actual disk IO performed for arbituary query plan. I searched

in backend/executor   but not sure if that was the right place to

add a tracer.  would the /backend/storage be the place that controls

the actual I/O?     btw, is there a way to find the definitions of all variables

or functions defined?   I tried cscope but it is not good for such a large

framework.

 

thanks a lot