public void setColumnObject(int idx, Object val) {
        origVals[idx - 1] = val;
        markColInserted(idx - 1);
    }
Sets the element in this <code>InsertRow</code> object's
internal array of original values that corresponds to the
designated column with the given value.  If the third
argument is <code>true</code>,
which means that the cursor is on the insert row, this
<code>InsertRow</code> object's internal <code>BitSet</code> object
is set so that the bit corresponding to the column being set is
turned on.

@param idx the number of the column in the insert row to be set;
             the first column is <code>1</code>
@param val the value to be set
src/main/java/org/replicadb/rowset/sun/rowset/internal/InsertRow.java