Hi Smita,
I was under the impression that the central list of columns would be authoritative, regarding the column attributes. Currently, it seems that the table itself has priority.
For example, if a column is described in the central list as being VARCHAR(40), and the same column name exists in a table, but with VARCHAR(45), I would expect a sync operation to adjust the column's size to the "official" 40. On the contrary, the central list is modified when doing the sync.
Or, am I mistaken with the goal of the sync feature?