Re: [HACKERS] Here it is - view permissions

On Tue, 24 February 1998, at 02:37:02, Thomas G. Lockhart wrote:

> > So I've never gotten the distinction -- what makes postgreSQL an
> > object oriented database...
> 
> It is not. It is object-relational, which is relational with some object-oriented
> features. The type/function extensibility is the most visible of these features.

Whoops, that should have been a no-brainer (because I already knew that)

> 
> > and what makes it relational?  the fact that it can do joins?
> 
> And allows one to use other aspects of relational algebra.

what is relational algebra?  operations on entire tuples?