Re: ADD FOREIGN KEY (was Re: [GENERAL] 7.4Beta)

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От
Tom Lane
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Re: ADD FOREIGN KEY (was Re: [GENERAL] 7.4Beta)
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19584.1064934958@sss.pgh.pa.us
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Re: ADD FOREIGN KEY Christopher Browne <cbbrowne@acm.org>
Re: ADD FOREIGN KEY Manfred Koizar <mkoi-pg@aon.at>
Re: ADD FOREIGN KEY Tom Lane <tgl@sss.pgh.pa.us>
Stephan Szabo  writes:
> As a side note, in the partial implementation I'd already done, I noticed
> a potential problem if the person doing the alter table didn't have read
> permissions on the pktable. I'd written it to bail and do the slow check
> in that case (well actually in most error cases that didn't themselves
> cause an elog), does anyone have a better idea?

Wouldn't all the subsequent triggers fail also in such a case?  (For
that matter, wouldn't the existing implementation of the initial check
fail?)  I can't see a reason to expend code to avoid failing here.  It's
not very sensible to be able to create an FK on a table you don't have
read permission for.
		regards, tom lane

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