Re: [PATCH] Largeobject access controls - Mailing list pgsql-hackers

From Tom Lane
Subject Re: [PATCH] Largeobject access controls
Date
Msg-id 15563.1254845821@sss.pgh.pa.us
Whole thread Raw
In response to Re: [PATCH] Largeobject access controls  (KaiGai Kohei <kaigai@ak.jp.nec.com>)
Responses Re: [PATCH] Largeobject access controls  (KaiGai Kohei <kaigai@kaigai.gr.jp>)
Re: [PATCH] Largeobject access controls  (KaiGai Kohei <kaigai@ak.jp.nec.com>)
List pgsql-hackers
KaiGai Kohei <kaigai@ak.jp.nec.com> writes:
> I rebased the largeobject access controls patch to the CVS HEAD
> because of the patch confliction to the default ACL patch.

Quick comment on this --- I think that using a syscache for large
objects is probably not a good idea.  There is no provision in the
catcache code for limiting the cache size anymore, and that means that
anybody who touches a large number of large objects is going to blow out
memory.  We removed the old cache limit code because that seemed most
sensible for the use of the caches for regular catalog objects, but
I don't think LOs will have the same characteristics with respect to
either number of objects or locality of access.
        regards, tom lane


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