Matt Gibbins <matt_gibbins@xxxxxxxxxxxxxxx> writes: > In the process of removing extensions not required on the database I was > in the process of removing the dblink extension from the postgres database. > First attempt to drop the extension failed with 'ERROR: schema > "ag_catalog" does not exist'. Something is very broken there. I wonder if this error could be a corrupted reference to "pg_catalog" --- but I don't really see what the details could be, because we don't store schema references as textual names, rather OIDs. Your follow-on errors also look more like catalog corruption than anything sane. With only these limited factoids to look at, it's impossible to say just what's going on --- but creating bogus objects in response to these errors is unlikely to get you anywhere. What PG version is this, what's the installation's history, have you suffered any catastrophic failures in the recent past? regards, tom lane