I have upgraded from postgreSQL version 7.3.6 to 8.2.4 few days ago. Everything works perfectly, but I have strange problem with backup.
My database contains blob's, but i was not doing backup with blobs every day. I am doing daily backup with command : pg_dump -U user_name database_name > filename
it was making backup without blobs, but now it includes blobs to the backup and I get huge file.