2009/9/15 Tom Lane <tgl@sss.pgh.pa.us>:
> Ivan Voras <ivoras@freebsd.org> writes:
>> Are functions in language 'sql' handled differently than those of
>> language 'plpgsql'?
>
> Yes.
>
>> I think they're not so in any case a function will behave as a black box
>> with regards to the planner and optimizer (and views are always
>> 'transparent').
>
> No.
Thanks! This is interesting information!
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