On 06/10/2012 03:20 AM, Mark Thornton wrote:
4. 3980922 rows, 1167MB, 276s 5. 31843368 rows, 9709MB, ~ 10 hours
Just judging based on the difference between these two, it would appear to be from a lot of temp space thrashing. An order of magnitude more rows shouldn't take over 100x longer to cluster, even with GIST. What's your maintenance_work_mem setting?
-- Shaun Thomas OptionsHouse | 141 W. Jackson Blvd. | Suite 500 | Chicago IL, 60604 312-444-8534 sthomas@xxxxxxxxxxxxxxxx ______________________________________________ See http://www.peak6.com/email_disclaimer/ for terms and conditions related to this email -- Sent via pgsql-performance mailing list (pgsql-performance@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-performance
