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From: aataneja@cs.mtu.edu (Anurag A. Taneja)
Message-Id: <9403252334.AA13094@cs.mtu.edu>
Subject: "define type ..", question about ..
To: postgres@postgres.Berkeley.EDU
Date: Fri, 25 Mar 1994 18:34:35 -0500 (EST)
Cc: aataneja@cs.mtu.edu (Anurag A. Taneja)
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Hi folks,

I am doing my thesis on nested databases ..

I was wondering if I can emulate nested databases on top of postgres..

To make the question simple .. Can I (or can i not), create
a new base data type say square, which consists of another defined
data type (say array of circle (from user manual)), and do something like:

typedef struct {
	circle c1[];
	double length;
	double width;
		}
==================
GO
* create test(sq=square) \g

* append test(sq="(2.0, 3.0, (1.0, 2.0, 4.0), (2.0, 2.2, 8.0))"::square) \g
                   |    |     |*circle params*| |*another circle*|
                   square params .............................

==================

If yes, how do I convert my circle.o (or circle.c) to be in the 
library of postgres (just like you POINT in utils/geo-decls.h) ..

thanks a zillion ...
hope u can help me on this ***pleeeasseee**!!!!
Bruce !