Ulrich Wisser <ulrich.wisser@relevanttraffic.se> writes:
> indexrelid
> ---------------
> userclick_i01
> userclick_i02
> userclick_i03
> userclick_i04
> userclick_i05
> userclick_i06
> userclick_i07
> (7 rows)
OK, so userclick_i02 appears to be the broken index.
> How do I proceed? How can I tell which files are involved?
See contrib/oid2name, or read
http://developer.postgresql.org/docs/postgres/storage.html
and work out the index file name for yourself.
If you don't already have a copy of pg_filedump, see
http://sources.redhat.com/rhdb/utilities.html
regards, tom lane