On Feb 7, 2011, at 8:57 AM, Tom Lane wrote:
> Yeah, this is another approach that one could take instead of having
> per-row flags. I'm not sure that it's better, much less so much better
> that we should force extensions to do it that way and not the other.
> But it's definitely another argument against making a hard-wired
> assumption that there will be a flag column.
Would the flag column usually be invisible, like the system oid column?
Best,
David