Re: shared_preload_libraries support on Win32?
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Тема | Re: shared_preload_libraries support on Win32? |
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Msg-id | 1170094886.8452.144.camel@sakai.localdomain обсуждение исходный текст |
Ответ на | Re: shared_preload_libraries support on Win32? (Tom Lane <tgl@sss.pgh.pa.us>) |
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Re: shared_preload_libraries support on Win32?
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Список | pgsql-hackers |
<blockquote type="CITE"><pre> <font color="#000000">Actually ... I take that back. I was thinking of the original purpose</font> <font color="#000000">of preload_libraries, which was strictly performance optimization.</font> <font color="#000000">But in the new world of plugins there may be functional reasons for</font> <font color="#000000">wanting libraries to be loaded into backends --- and</font> <font color="#000000">shared_preload_libraries is not isomorphic to local_preload_libraries.</font> <font color="#000000">The permissions situation is different.</font> </pre></blockquote><br /> And, shared_preload_libraries is processed (in the postmaster) before the shared-memory segmentis created, so a shared_preload_library can call RequestAddinShmemSpace() and RequestAddinLWLocks(), but a local_preload_librarycannot.<br /><br /><br /> -- Korry
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