Keith Gaughan wrote: >Claude Schneegans wrote: > > >>>>I can see for having the whole record as the primary key is to save space. >>>>Adding an extra column to store a primary key >>>>requires the space to store it and the storage for the sequence. >>>> >>>> >>>> >>>Not even, you may save the space of an integer key in the table, but think >>>about the index! >>> >>> >>> >But there's no sense if saving space like that when you need a whole >tuple to do a lookup. > I think that was the point.
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