2010/8/29 Tom Lane <tgl@sss.pgh.pa.us>:
> Pavel Stehule <pavel.stehule@gmail.com> writes:
>> I testing a simple use case and I was surprised with very slow
>> execution of SQL functions
>
> The one case is inline-able and the other not (because it would result
> in double evaluation of the volatile function random()).
> See EXPLAIN VERBOSE.
I understand now. So it means general advice - don't use a boolean
operators in SQL function? This issue should be documented somewhere?
Regards
Pavel Stehule
>
> regards, tom lane
>
