2010/1/28 Tom Lane <tgl@sss.pgh.pa.us>:
> Pavel Stehule <pavel.stehule@gmail.com> writes:
>> with get_fn_expr_arg_stable() we are able to fix second parameter
>> without some performance issues.
>
> No, that will create its own performance issues ---
> get_fn_expr_arg_stable isn't especially cheap.
> If there were a really strong reason why we had to do it,
> then I'd agree, but frankly the argument for disallowing
> a variable delimiter is too thin.
it could be called only once. But I agree, so could be better, check
it in parser time.
ok - I am only one who like original behave - so I am withdrawing.
Robert, If you like, please commit Itagaki's patch. + add note about
behave when second parameter isn't stable.
Regards
Pavel Stehule
>
> regards, tom lane
>