Chris Browne <cbbrowne@xxxxxxx> writes: > Ron's comment is well-suggested[1], but a bit of a red herring, as the > column will *NEVER* be "physically dropped." [2] Check. > What will happen is that new tuples will not have the column, but old > tuples will continue to have the (invisible) column for as long as > they "live" in the database. Actually, new tuples still have the column, it's just always NULL (and hence takes no space except for a bit in the nulls-bitmap). regards, tom lane
