Possible problems with cyclic references

Hi all, me again.

I've been looking at the doc's again (must stop doing that!)

I've been looking at the 'references' clause to implement referential 
integrity.  My problem is that I'm wanting to create a cyclic reference, and 
was wondering what problems this may cause, e.g. when restoring from a 
pg_dump.

I have a region table (rregion character(2), rname varchar(40), rliasson 
int4).
I have a teams table (ttid int4, tregion character(2) references 
region(rregion),...)
I have a members table (mid int4, mteam references teams(tid),.........)

Pretty straight forward so far, a member must be a part of a team and a team 
must be in a region.  My problem is that I want to set rliasson as a 
reference to members (mid) as the Regional Liasson Officer for each region is 
a member.
-- 
Gary Stainburn
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