Simon Riggs wrote:
> What postgresql.conf already does is read file separately in each
> process, so no data passing.
No it doesn't. Postmaster reads the file once, and backends inherit the
values at fork(). In EXEC_BACKEND case, postmaster writes all the
non-default values to a separate file, which the child process reads at
startup.
Reading the file separately in each process would cause trouble with
PGC_POSTMASTER params. All backends must agree on their values.
--
Heikki Linnakangas
EnterpriseDB http://www.enterprisedb.com