From: | Thom Brown <thom(at)linux(dot)com> |
---|---|
To: | PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | postgresql.auto.conf comments |
Date: | 2014-11-24 20:26:07 |
Message-ID: | CAA-aLv50MZdjdVk_=Tep6na94dNmi1Y9XkCp3er7FQqvX=DagQ@mail.gmail.com |
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Lists: | pgsql-hackers |
Hi,
I haven't seen this mentioned anywhere (although it may have as I haven't
read through the entire history of it), but would others find it useful to
have ALTER SYSTEM support comments?
e.g.
ALTER SYSTEM SET autovacuum_vacuum_scale_factor = 0.01
WITH [ INLINE | HEADLINE ] COMMENT $$As most of the tables on the system
are so big, we're setting this parameter lower than the default to keep
bloat under more control.$$;
I just made up inline and headline to suggest that we could allow either:
autovacuum_vacuum_scale_factor = 0.01 # As most of the tables...
and
# As most of the tables on the system are so big, we're setting this
parameter
# lower than the default to keep bloat under more control.
autovacuum_vacuum_scale_factor = 0.01
The rationale being that it's often the case one wants to document the
reason for a parameter being configured so, but there's no way of doing
this for settings in postgresql.auto.conf as they'll be wiped out if added
manually.
Thom
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