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Re: shared_preload_libraries support on Win32?

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: korryd(at)enterprisedb(dot)com
Cc: "Andrew Dunstan" <andrew(at)dunslane(dot)net>, pgsql-hackers(at)postgresql(dot)org
Subject: Re: shared_preload_libraries support on Win32?
Date: 2007-01-29 19:07:25
Message-ID: (view raw, whole thread or download thread mbox)
Lists: pgsql-hackers
<korryd(at)enterprisedb(dot)com> writes:
>> But in the new world of plugins there may be functional reasons for
>> wanting libraries to be loaded into backends --- and
>> shared_preload_libraries is not isomorphic to local_preload_libraries.
>> The permissions situation is different.

> And, shared_preload_libraries is processed (in the postmaster) before
> the shared-memory segment is created, so a shared_preload_library can
> call RequestAddinShmemSpace() and RequestAddinLWLocks(), but a
> local_preload_library cannot.

That doesn't seem like an issue though, since the copy in the postmaster
will have done that anyway.

			regards, tom lane

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