Re: [GENERAL] Index optimization ?

[Bo Lorentsen]

Tom Lane wrote:
http://developer.postgresql.org/docs/postgres/xfunc-volatility.html
 

Ok, thanks I see why there is these three differant function types, but 
I don't quite understand why the value from a volatile function, can't 
be used as a index key. Is this because there is no return type garanti, 
for the voilatile function too ?

Will the only possible way to fix this be to make a volatile function 
with a return type (I know this is not possible now, but in theory) ?

/BL
---------------------------(end of broadcast)---------------------------
TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]