Why an array in pg_group?

Hi,

Is there any reason why the grolist field in the table pg_group is 
implemented as an array and not as a separate table?

According to the documentation:

<quote source="Postgresql 7.2 User Manual, chapter 6 near the end">
Arrays are not sets; using arrays in the manner described in the previous 
paragraph is often a sign of database misdesign.
</quote>

I have trouble implementing a way to easily check whether a user is part 
of a group. (I use Apache::AuthDBI to implement authentication and wanted 
to make a view with columns username, userid , groupname. And installing 
the contrib/array give's me a postgresql that is different from all the 
others :-(


-- 
__________________________________________________
"Nothing is as subjective as reality"
Reinoud van Leeuwen    reinoud.v@n.leeuwen.net
http://www.xs4all.nl/~reinoud
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