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Re: pgsql-server/ oc/src/sgml/runtime.sgml rc/back ...

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us>
Cc: Peter Eisentraut <peter_e(at)gmx(dot)net>,pgsql-committers(at)postgresql(dot)org
Subject: Re: pgsql-server/ oc/src/sgml/runtime.sgml rc/back ...
Date: 2003-10-05 15:45:40
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Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> Peter Eisentraut wrote:
>> Given that new languages don't tend to appear out of the blue, I think
>> it's reasonable to design the feature considering the languages currently
>> available.

I think that position is sufficiently rebutted by Bruce's observation:

> Once we put a GUC value in a dump, we have to keep that parameter valid
> almost forever.

Since we are inventing this thing specifically to put it in dump files,
we had better take a very long-term view of its purposes.

>> None of these languages except the
>> first two have anything to gain, but everything to lose, if they were
>> asked not to check the function body during a dump restore.

That's why the code leaves it up to the individual validator routine how
much to check or not check depending on the flag setting.  I have no
problem with an individual language deciding that it should or shouldn't
do a particular check.  I do think that we'd be foolish to make advance
judgements about what those decisions will be.

Bottom line is that I wouldn't object to changing the switch name to
something more general ("restore_validation_mode", maybe?) but I think
that changing it to something more specific would be a mistake in the
long run.

			regards, tom lane

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