Default is not a real column
The column DEFAULT (querybuilder.atoms.columns.Default
) shouldn't subclass the columns base class (querybuilder.atoms.columns.Column
) since it is not part of the column algebra, e.g., it is not possible, in SQL, to have: UPDATE t SET x = 2*DEFAULT
. I suggest to make a side object, like it was done for *
(querybuilder.atoms.columns.Star
).