[ I realise the discussion has left strxfrm(), but for the archives if nothing else ... ]
Peter Eisentraut <peter_e@gmx.net> wrote:
> We'd need to implement the strxfrm() function in SQL and the $<=$
> operator, both of which are trivial. The index would have to be in terms
> of strxfrm(). There might be other issues, but they could be solved
> algorithmically, I suppose.
Implementations of strxfrm() that I've looked at have had result data
that is three or four times larger than then input string -- quite a
penalty in some situations.
Regards,
Giles