Sridhara KB <sridhara.kb@digitalapicraft.com> writes:
> Have gone through this url, but size of pgdata of old database and pgdata of new database are not matching.
That in itself means nothing.
A freshly-reloaded table will contain no dead space, and freshly-rebuilt
indexes typically have less bloat than ones that have been used for
awhile. So the fact that your new database is smaller per "du" does
not mean you lost data.
regards, tom lane