The Postgres website has a backend flow chart to help developers:
https://www.postgresql.org/developer/backend/
Now that we support MERGE, and MERGE uses the same code path as SELECT,
INSERT, UPDATE, and DELETE, attached is a diff to the code and new GIF
image to include MERGE.
--
Bruce Momjian <bruce@momjian.us> https://momjian.us
EDB https://enterprisedb.com
Embrace your flaws. They make you human, rather than perfect,
which you will never be.
