Hello,
I have two concerns regarding the patch:
A) I am not sure if it is good to have a single contention point (pgss-lock
= LWLockAssign()). I guess that would impact scalability, especially on a
multi-cpu systems. I guess the real solution will come when PostgreSQL have
a pool for sql
Here is an updated version of contrib/pg_stat_statements module.
I wrote:
A shutdown hook is probably not needed because I can use proc_exit()
or shmem_exit() for the purpose.
I added shutdown hook eventually because MyProc has been reset already
in on_shmem_exit(). A callback that resets
