[GENERAL] questions?

Hi,I have read the source codes of pgsql these days,and I want to know which part of the source codes deal with the function of executing the sql(select,alter,and so on),and which function  deal with the query operation. Thank!

[GENERAL] questions?

Hi,guys.Who knows the structure of the pgsql source codes.What I means is that the content of the source codes and its function. Thanks a lot