Greg Sabino Mullane <greg(at)endpoint(dot)com> writes:
> We have a 8.3.18 system (yes, the same one from the previous
> thread, finally upgraded!) that gave us this error yesterday:
> ERROR: index "pg_class_oid_index" is not a btree
That means you got bogus data while reading the metapage.
I'm beginning to wonder about the hardware on this server ...
regards, tom lane