2009/4/19 Peter Eisentraut <peter_e@gmx.net>:
> On Saturday 18 April 2009 18:09:00 Pavel Stehule wrote:
>> There are lot of things, that should be done with current grammar only
>> on transformation stage. Currently pg do it now. There are lot of
>> pseudo functions, that are specially transformed: least, greatest,
>> coalesce. After hooking we should do some similar work from outer
>> libraries.
>
> There are surely other ways to accomplish this than an expression
> transformation hook. Adding a property or two to the function definition to
> do what you want could do it.
>
should you describe it little bit more?
regards
Pavel