[ Charset ISO-8859-1 unsupported, converting... ]
> > we bite the bullet to the extent of supporting a distinction between
> > physical and logical column numbers, then ISTM there's no strong need
> > to do any of this other stuff at all. I'd expect that an inserted or
> > updated tuple would have a NULL in any physical column position that
> > doesn't have an equivalent logical column, so the space cost
> > is minimal
> > (zero, in fact, if there are any other NULLs in the tuple). Over time
> > the space occupied by deleted-column data would gradually go away as
> > tuples got updated.
>
> This said, I think Hiroshi's patch seems a perfect starting point, no ?
Having phantom columns adds additional complexity to the system overall.
We have to decide we really want it before making things more complex
than they already are.
--
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
