They can, so long as the source and target table structures are same but logically it still does not make sense. In transformation, Post either invokes a PL/SQL procedure instead of posting to the target table or invokes the procedure to manipulate the data prior to posting it in target table. In either case, even if repair succeeds due to similar structure of source and target tables, it will not logically make any sense as it will undo all the work done by transformation. It is cumbersome to recreate the data on target table once repair changes that data. If the structure of the target table is designed to be different than that of source to take into account the transformation, then repair will not succeed due to structural difference.
As for Compare, it may prescribe the table as in sync or out of sync for source and target tables with similar structures but that will not make any logical sense either. For tables with dissimilar structures, the compare will not work.
