Does anyone know how to make an attribute a collection of OIDs? I haven't found any reference of this object-oriented feature in Postgres online manuals. Please, let me know any hints/links or anything that could help me doing the following: === Assume that each row of tables is identified by OID. I want to define an attribute, say (t1.c2), as a collection of OIDs linking to rows of table t2. At the same time the attribute (t1.c3) contains a collection of OIDs linking to rows of table t3. === How do I do to make the postgres "navigate through OID links", to prevent expensive access methods (joins, sequential or indexed) ?
