Re: Some one deleted pg_database entry how to fix it?

Tom,

Thanks, first of all it wasn't my mess, but someone elses.

Secondly this worked however I was unable to use the same name, some
remnants of the old database must have remained in pg_database.

I couldn't even reindex it with postgres -O -P

Dave
On Tue, 2004-03-16 at 11:11, Tom Lane wrote:
> Dave Cramer <pg(at)fastcrypt(dot)com> writes:
> > psql dbname can still connect but when I go to the pg_database table the
> > db is not there as a result I cannot do a pg_dump on it?
>
> Hm, it doesn't make a lot of sense that fresh connections would still
> succeed if the pg_database row is deleted, but ...
>
> > I tried forcing an entry into pg_database but it won't allow me to set
> > the oid ?
>
> You don't have to; the DB OID doesn't appear anywhere within the
> database (except possibly with the database comment, if you have one).
>
> So:
>
> * Determine the old DB OID, by elimination if necessary.
>
> * Create a new database and determine its OID.
>
> * Shut down postmaster.
>
> * Blow away $PGDATA/base/NEWOID, and rename $PGDATA/base/OLDOID to
> be $PGDATA/base/NEWOID.
>
> * Restart postmaster.
>
> * Try to figure out what you did wrong, so you don't do it again...
>
> regards, tom lane
>
--
Dave Cramer
519 939 0336
ICQ # 14675561