> Obviously, many indexes are unique and thus won't have duplicates at > all. But if someone creates an index and doesn't make it unique, odds > are very high that it has some duplicates. Not sure how many we > typically expect to see, but more than zero...
Peter may not, but I personally admin lots of databases which have indexes on values like "category" or "city" which have 100's or 1000's of duplicates per value. I don't think this is uncommon at all. -- Josh Berkus PostgreSQL Experts Inc. http://pgexperts.com -- Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-hackers
