Jayadevan M, 25.10.2012 05:15:
> There are tools which generate data, but most of them seem to
> generate junk data.
Have a look a Benerator. It can create quite reasonable test data (e.g. valid addresses, "real" looking names and so
on).
It has a bit steep learning curve, but I'm quite happy with the results
http://databene.org/databene-benerator
Another option might be the Dell DVD Store Loadtest:
http://linux.dell.com/dvdstore/
It can generate testdata with a specific scale and it works well with Postgres.
Regards
Thomas