How can adjacent freespace fragments be added together?
In the case of LMTS, adjacent freespace fragments are automatically recognized as being connected in the LMTS bitmap. In the case of DMTS, there is no automated mechanism for adding adjacent areas of freespace together. In fact, Oracle automatically adds them together if required – for example, if there is no sufficiently large freespace fragment available for an extent that is to be allocated. This process of adding freespaces together is also known as tablespace COALESCE.
