On Mon, May 08, 2006 at 07:29:32PM -0600, Brendan Duddridge wrote: > Do you have any suggestions on how I can optimize the query so both > versions of the query come back fast without doing a sequential scan > on the price table? Well, before you do anything you should verify that an index scan in the second case would actually be faster. Set enable_seqscan=off and check that. After that, you can favor an index scan by (in order of effectiveness) increasing the correlation on the appropriate index (by clustering on it), lowering random_page_cost, or increasing effective_cache_size. -- Jim C. Nasby, Sr. Engineering Consultant jnasby@xxxxxxxxxxxxx Pervasive Software http://pervasive.com work: 512-231-6117 vcard: http://jim.nasby.net/pervasive.vcf cell: 512-569-9461
