On Tuesday 26 November 2002 09:05 pm, Hannu Krosing wrote: > Reinoud van Leeuwen kirjutas K, 20.11.2002 kell 17:03: > > 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? > > most likely for performance reasons. > > > 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 :-( > > not from those who also have installed contrib/array ;) > > but you should actually be using contrib/intagg (and perhaps contrib > intarray) for performance reasons ;) Can You make syntax (operator or function) like :
scalar integer IN array integers for join scalar and array fileds ? in base PostgreSQL ? regards Haris Peco ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
