postgresql data directory not connecting

Question

I am using windows 8. My Postgres was Correct. I just took the data directory from C:/postgresql/8.3/ Now database was connected through command prompt. When I was trying to connect using pgadmin, it's saying

FATEL: error
An error has occured:
Error connecting to sthe server: FATAL: role "postgres" is not permitted to log in

I changed the required things in pg_hba.conf (trust) and postgresql.conf (connection *) (port 5433)

But, still I was unable to connect the database.

How to give the permissions to postgres role. when am trying to give the permissions through cmd also it's giving same error.

I was tried in so many ways but, still I didn't get the database.

Answer 1

It looks like you might have accidentally revoked the LOGIN and SUPERUSER rights from the postgres user. Perhaps you created a superuser with a different name instead? Log in as that user if you did.

If not, and you can't get access as user postgres , you will need to start the database engine up in single-user mode and manually GRANT the SUPERUSER right to postgres again. This is much the same process as is required when recovering from a dropped (deleted) superuser account.

See related:

• https://dba.stackexchange.com/q/44586/7788
• Postgres reset password in PostgreSQL server 8.4

BTW, 8.3 is a very old and unsupported version. Plan your upgrade promptly.

If there's no data in PostgreSQL that you care about, the easiest thing to do will be:

• Uninstall PostgreSQL 8.3;
• Delete C:\\Program Files\\PostgreSQL\\8.3 (permanently and unrecoverably destroying all data in your PostgreSQL databases); and
• Install a current PostgreSQL version