On Sun, 3 Jul 2005 03:32 pm, Michael Fuhr wrote:
> I've noticed that contrib/pgcrypto/pgcrypto.sql.in doesn't include
> a volatility category in its CREATE FUNCTION statements, so the
> functions are all created VOLATILE.  Shouldn't most of them be
> IMMUTABLE?  Or do the algorithms have side effects?  So far I've
> found no discussion about this except for one person asking about
> it last year:
> 
> http://archives.postgresql.org/pgsql-admin/2004-12/msg00065.php
> 
I know the salt functions MUST stay volatile, as they produce different output
every time you call them.  I've not looked at the pgcrypto code, so I can't
make further comment than that.

Regards

Russell Smith.

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