The following documentation comment has been logged on the website: Page: https://www.postgresql.org/docs/16/mvcc-intro.html Description:
There really needs to be an explicit warning that the following is invalid in normal read committed mode:- select foo into f from bar where id=1; f = f + 123; update bar set foo = f where id =1; commit; This is a very common and serious mistake and extremely difficult to understand from the current documentation.
