On Tue, Apr 25, 2006 at 10:08:02AM -0700, Sriram Dandapani wrote: Here's the key: > " Filter: ((col1)::text ~~ '172.%'::text)" In order to do a like comparison, it has to convert col1 (which I'm guessing is of type 'inet') to text, so there's no way it can use an index on col1 (maybe a function index, but that's a different story). Is there some reason you're not doing WHERE col1 <<= '172/8'::inet ? -- 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