From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | "Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> |
Cc: | pgsql-bugs(at)postgresql(dot)org |
Subject: | Re: Security definer "generated column" function used in index |
Date: | 2011-12-20 21:53:19 |
Message-ID: | 17366.1324417999@sss.pgh.pa.us |
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Lists: | pgsql-bugs |
"Kevin Grittner" <Kevin(dot)Grittner(at)wicourts(dot)gov> writes:
> ... It wasn't even clear to me that it was
> OK to have one security definer function call another, based on the
> code comment I quoted, so I didn't want to spend more hours on
> attempting to create a test case if it simply wasn't supported.
Yes, that's definitely *supposed* to work, though I'll grant that there
could be bugs there. It's hard to see how it'd be a race condition
though.
On reflection what seems most likely is simply that turning these
otherwise-inlineable SQL functions into SECURITY DEFINER disabled
inline-ing them, resulting in catastrophic degradation of the generated
plans, such that they took a lot longer than you were accustomed to
(they shouldn't have been "hung" though).
regards, tom lane
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