Forum OpenACS Development: Re: Attribute "tag" in party_approved_member_map
However, the following should be done to reduce the guesswork:
a) rename "tag" into "originating_rel_id"
b) replace the "0" of the sellf-membership by a NULL
c) define a fk for "originating_rel_id" to acs_rels.
These changes are now committed to the oacs-5-9 branch.
The Oracle version us quite different, it uses a ref-count instead of the "originating_rel_id", where the latter makes it easier to understand the whereabouts of the values and eases deletions, etc.