| From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
|---|---|
| To: | matthew(at)zeut(dot)net |
| Cc: | pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Coding help |
| Date: | 2002-08-16 05:50:21 |
| Message-ID: | 4867.1029477021@sss.pgh.pa.us |
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| Lists: | pgsql-hackers |
"Matthew T. O'Connor" <matthew(at)zeut(dot)net> writes:
> I have gotten as far as having a vacuum daemon created on postmaster startup.
> It's just a fork from the postmaster, cribbed mostly from the stat collector
> code.
This will not get you very far, because the stat collector is not a real
backend. The checkpointer process might be a better example, but it's
not quite a real backend either. You need to be a real backend to
access shared buffers, locking, etc.
> I don't understand why it thinks I'm in a function,
Because CurrentMemoryContext is not QueryContext (presumably you never
set QueryContext at all). This is a pretty cheesy test but I can't
think of a better one offhand...
regards, tom lane
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