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It would seem that trying to hide code while using
an open source system is just wrong. 8-)
That being said -- You would grant the
user/group execute rights on the function, but no read rights on the system
table that contains the function definition, pg_proc.
How is this user supposed to call the function?
Does he have a cutomized application or does he have access to an SQL interface,
such as Psql or PGAdmin?
Finally, I don't think you have to
apologize for either bad English or for being Spanish, the native English
speakers (and I only speak for myself here) appreciate the extra effort
that non-English speaking people put in to allow the project to be fully
internationalized. You should be proud of being Spanish, because even though
there were a lot of bad points in Spanish history, Christopher Colombus did
supposedly discover America, or something similar, and without that we wouldn't
all be speaking English today.
sim
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