Re: erroneous restore into pg_catalog schema

On Tue, Jan 29, 2013 at 2:30 PM, Alvaro Herrera
<alvherre@2ndquadrant.com> wrote:
> Robert Haas escribió:
>> On Tue, Jan 15, 2013 at 3:22 PM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
>> > Robert Haas <robertmhaas@gmail.com> writes:
>> >> Or perhaps there is some other way to make sure that the user "really
>> >> meant it", like refusing to create in pg_catalog unless the schema
>> >> name is given explicitly.  I kind of like that idea, actually.
>> >
>> > That does seem attractive at first glance.  Did you have an
>> > implementation in mind?  The idea that comes to mind for me is to hack
>> > namespace.c, either to prevent activeCreationNamespace from getting set
>> > to "pg_catalog" in the first place, or to throw error in
>> > LookupCreationNamespace and friends.  I am not sure though if
>> > LookupCreationNamespace et al ever get called in contexts where no
>> > immediate object creation is intended (and thus maybe an error wouldn't
>> > be appropriate).
>>
>> As far as I can see, the principle place we'd want to hack would be
>> recomputeNamespacePath(), so that activeCreationNamespace never ends
>> up pointing to pg_catalog even if that's explicitly listed in
>> search_path.  The places where we actually work out what schema to use
>> are RangeVarGetCreationNamespace() and
>> QualifiedNameGetCreationNamespace(), but those don't seem like they'd
>> need any adjustment, unless perhaps we wish to whack around the "no
>> schema has been selected to create in" error message in some way.
>
> Robert, are you working on this?

I wasn't, but I can, if we agree on it.

-- 
Robert Haas
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