Re: pg_dump / restore of empty database gives errors - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: pg_dump / restore of empty database gives errors
Date
Msg-id 200303171732.h2HHWU728785@candle.pha.pa.us
Whole thread Raw
In response to Re: pg_dump / restore of empty database gives errors  (Peter Eisentraut <peter_e@gmx.net>)
List pgsql-hackers
Has this been addressed?  I don't see any changes in initdb.sh or
pg_namespace.h.

---------------------------------------------------------------------------

Peter Eisentraut wrote:
> Tom Lane writes:
> 
> > Hmm.  So the real story here is that the permissions set up by initdb
> > for PUBLIC are actually an illegal state: postgres has granted
> > permissions to public that it isn't allowed to.
> 
> Yes, the way the permissions are initialized in the catalog templates
> 
> DATA(insert OID = 11 ( "pg_catalog" PGUID "{=U}" ));
> DATA(insert OID = 99 ( "pg_toast" PGUID "{=}" ));
> DATA(insert OID = 2200 ( "public" PGUID "{=UC}" ));
> 
> produce an invalid state.  I hadn't thought that this would create a
> problem for pg_dump, but I will hurry up fixing it.  (I will probably put
> explicit GRANT commands into initdb.)
> 
> > (There may also be an issue with the order in which pg_dump issues its
> > revoke/grant operations, ie, there might be legal combinations that it
> > can't reproduce.)
> 
> If you don't do manual surgery on aclitem's then I am convinced that it is
> not possible to arrive at an undumpable state.  This is a consequence of
> the way it's implemented.
> 
> -- 
> Peter Eisentraut   peter_e@gmx.net
> 
> 
> 
> ---------------------------(end of broadcast)---------------------------
> TIP 4: Don't 'kill -9' the postmaster
> 

--  Bruce Momjian                        |  http://candle.pha.pa.us pgman@candle.pha.pa.us               |  (610)
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