Tom Lane wrote: > Manfred Koizar <[EMAIL PROTECTED]> writes: > > what about WITHOUT OIDS? I know dropping the OID from some tables and > > keeping it for others is not trivial, because t_oid is the _first_ > > field of HeapTupleHeaderData. I'm vaguely considering a few possible > > implementations and will invest more work in a detailed proposal, if > > it's wanted. > > Yeah, I had been toying with the notion of treating OID like a user > field --- ie, it'd be present in the variable-length part of the record > if at all. It'd be a bit tricky to find all the places that would need > to change, but I think there are not all that many. > > As usual, the major objection to any such change is losing the chance > of doing pg_upgrade. But we didn't have pg_upgrade during the 7.2 > cycle either. If we put together several such changes and did them > all at once, the benefit might be enough to overcome that complaint.
I think it is inevitable that there be enough binary file changes the pg_upgrade will not work for 7.3 --- it just seems it is only a matter of time. One idea is to allow alternate page layouts using the heap page version number, but that will be difficult/confusing in the code. -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 853-3000 + If your life is a hard drive, | 830 Blythe Avenue + Christ can be your backup. | Drexel Hill, Pennsylvania 19026 ---------------------------(end of broadcast)--------------------------- TIP 1: subscribe and unsubscribe commands go to [EMAIL PROTECTED]
