| From: | Andrew Dunstan <andrew(at)dunslane(dot)net> |
|---|---|
| To: | Csaba Nagy <nagy(at)ecircle-ag(dot)com> |
| Cc: | Gokulakannan Somasundaram <gokul007(at)gmail(dot)com>, "Florian G(dot) Pflug" <fgp(at)phlo(dot)org>, Heikki Linnakangas <heikki(at)enterprisedb(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: Including Snapshot Info with Indexes |
| Date: | 2007-10-09 15:22:50 |
| Message-ID: | 470B9CCA.4020602@dunslane.net |
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| Lists: | pgsql-hackers pgsql-patches |
Csaba Nagy wrote:
> You mean postgres should check your function if it is really immutable ?
> I can't imagine any way to do it correctly in reasonable time :-)
>
>
I would say that in the general case it's analogous to the halting
problem, not solvable at all let alone in any reasonable time.
cheers
andrew
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