"Mark Dexter" <MDEXTER@dexterchaney.com> writes:
> Several recent postings appear to confirm that there is an issue with
> the use of VACUUM or ANALYZE on empty tables. Specifically, if you
> VACUUM or ANALYZE a table that is empty and then insert a large number
> of rows into this table, you will experience very poor performance.
Well-known issue. See this thread for the latest discussion:
http://archives.postgresql.org/pgsql-hackers/2004-11/msg00985.php
regards, tom lane