songsubo wrote: > I create a primary key on the "oid" column. The oid is generate by > system itself. The oid may overlap, when this happen, this operation > may fail?
Yes. If you want a self-incrementing primary key, why not use a SERIAL type? -- Richard Huxton Archonet Ltd ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
