Re: bugfix - VIP: variadic function ignore strict flag

2010/2/9 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
> Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> writes:
>> +             /*
>> +              * If function has variadic argument, skip calling
>> +              * when variadic array contains NULL values.
>> +              */
>
> I don't think this is right at all.  The strict check ought to apply to
> the array argument as a whole.

yes, this isn't clear. My arguments for change:

a) the behave depends on types - "any" is different than others.

b) optimization over fmgr doesn't work now.

b1. some possible const null and strict are ignored
b2. array is non const always - so pre eval doesn't work for variadic

c) it could be confusing, and it is partially confusing.

point c could be solved by notice in documentation. But a and b are
problem. The variadic funcall cannot be optimized :(

Regards
Pavel Stehule

>
>                        regards, tom lane
>