Re: migration of 7.4 to 8.1

sathiya psql wrote:
> My question is that how to migrate my database to 7.4 to 8.1
>
>
> that is not only dumping the db and extracting that in 8.1 ..
>
> If i do that whether it will work without problem, or i have to do some
> manual changes is my question...

Start by reading the postgresql 8.0 and 8.1 release notes. See:

http://www.postgresql.org/docs/current/static/release.html

particularly:

http://www.postgresql.org/docs/current/static/release-8-0.html
http://www.postgresql.org/docs/current/static/release-8-1.html

--
Craig Ringer