a.column1 = (+) b.column1 ANDNoway this can work! However the mapping was running smoothly. OWB actually changes the place of the (+) to the correct location when generating the SQL so that the final statement looks like:
a.column2 = (+) b.column2
a.column1 = b.column1 (+) ANDI was totally amazed by this.
a.column2 = b.column2 (+)