Hi Prateek, After you make schema changes that expose a property as a database table column, and populate it:  Property, whose values were previously stored only in the Storage Stream (BLOB) column, can populate the newly exposed column.  The property values going forward will be stored directly into the column as long as it remains mapped to that column (mapped external or via Index).

Sidenote: You can update rows in a database table by using the Column Populator utility. You can also rebuild database indexes and Index- instances defined by Declare Index rules for the newly populated column as part of the same operation.