Copying tables using the SET routine operation

The "Set" operation on tables handles differently sized tables as follows

1. IF the column count is the same but rows differ, then rows are
added/removed automatically to the target table to make them the
same size before the copy

2. If the column count is different as well, then columns will be
copied from the original table *as long* as the target table has
no columns to start with

(column labels will not map properly if the table columns are rearranged)

---

idkbase note 138