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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hey all and Mark –<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Mark, thanks again for your suggestions. I am having trouble making it work, and I’m wondering if you or anyone else has any suggested fixes to any of the following scripts. These were my various failed attempts:<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Take One:<o:p></o:p></p><p class=MsoNormal> [WARNING ] CREATE TABLE public.census_bg_near_ids_for_du_equal_zero_test_062111<o:p></o:p></p><p class=MsoNormal> as <o:p></o:p></p><p class=MsoNormal> SELECT DISTINCT ON(o.ogc_id) <o:p></o:p></p><p class=MsoNormal> o.ogc_id As orig_ogc_id,<o:p></o:p></p><p class=MsoNormal> o.sf3_totalhu_h030001 As sf3_totalhu_h030001,<o:p></o:p></p><p class=MsoNormal> o.st_pointfromtext As st_pointfromtext,<o:p></o:p></p><p class=MsoNormal> n.ogc_id As near_ogc_id,<o:p></o:p></p><p class=MsoNormal> n.sf3_totalhu_h030001 As near_sf3_totalhu_h030001,<o:p></o:p></p><p class=MsoNormal> FROM census_bg_du_equal_zero_test_062111 As o, census_bg_du_more_than_zero_test_062111 As n <o:p></o:p></p><p class=MsoNormal> WHERE o.ogc_id <> n.ogc_id AND ST_DWithin(o.the_geom, n.the_geom, 25000);<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>Take Two: <o:p></o:p></p><p class=MsoNormal>[WARNING ] CREATE TABLE public.census_bg_near_ids_for_du_equal_zero_test_062111<o:p></o:p></p><p class=MsoNormal> as <o:p></o:p></p><p class=MsoNormal> SELECT <o:p></o:p></p><p class=MsoNormal> o.ogc_id As orig_ogc_id,<o:p></o:p></p><p class=MsoNormal> o.sf3_totalhu_h030001 As sf3_totalhu_h030001,<o:p></o:p></p><p class=MsoNormal> o.st_pointfromtext As st_pointfromtext,<o:p></o:p></p><p class=MsoNormal> n.ogc_id As near_ogc_id,<o:p></o:p></p><p class=MsoNormal> n.sf3_totalhu_h030001 As near_sf3_totalhu_h030001, <o:p></o:p></p><p class=MsoNormal> FROM census_bg_du_equal_zero_test_062111 As o, census_bg_du_more_than_zero_test_062111 As n <o:p></o:p></p><p class=MsoNormal> WHERE o.ogc_id <> n.ogc_id AND ST_DWithin(o.the_geom, n.the_geom, 25000) <o:p></o:p></p><p class=MsoNormal> LIMIT 1;<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Maybe the “nn” in the field names of the following model script something important?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>Model One: <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'>SELECT DISTINCT ON(g1.gid) g1.gid As gref_gid, g1.description As gref_description, g2.gid As gnn_gid, <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> g2.description As gnn_description <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> FROM sometable As g1, sometable As g2 <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> WHERE g1.gid <> g2.gid AND ST_DWithin(g1.the_geom, g2.the_geom, 300) <o:p></o:p></span></p><p class=MsoNormal><span style='font-size:10.0pt;font-family:"Courier New"'> ORDER BY g1.gid, ST_Distance(g1.the_geom,g2.the_geom)<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><pre><span class=syntax8>Model Two:<o:p></o:p></span></pre><pre><span class=syntax8>SELECT</span><span class=syntax0> g1.gid </span><span class=syntax8>As</span><span class=syntax0> gref_gid, g1.description </span><span class=syntax8>As</span><span class=syntax0> gref_description, g2.gid </span><span class=syntax8>As</span><span class=syntax0> gnn_gid, <o:p></o:p></span></pre><pre><span class=syntax0> g2.description </span><span class=syntax8>As</span><span class=syntax0> gnn_description <o:p></o:p></span></pre><pre><span class=syntax0> </span><span class=syntax8>FROM</span><span class=syntax0> sometable </span><span class=syntax8>As</span><span class=syntax0> g1, sometable </span><span class=syntax8>As</span><span class=syntax0> g2 <o:p></o:p></span></pre><pre><span class=syntax0> </span><span class=syntax8>WHERE</span><span class=syntax0> g1.gid </span><span class=syntax18>=</span><span class=syntax0> </span><span class=syntax5>1</span><span class=syntax0> </span><span class=syntax8>and</span><span class=syntax0> g1.gid </span><span class=syntax18><></span><span class=syntax0> g2.gid </span><span class=syntax8>AND</span><span class=syntax0> </span><span class=syntax6>ST_DWithin</span><span class=syntax0>(g1.the_geom, g2.the_geom, </span><span class=syntax5>300</span><span class=syntax0>) <o:p></o:p></span></pre><pre><span class=syntax0> </span><span class=syntax8>ORDER</span><span class=syntax0> </span><span class=syntax8>BY</span><span class=syntax0> </span><span class=syntax6>ST_Distance</span><span class=syntax0>(g1.the_geom,g2.the_geom) <o:p></o:p></span></pre><pre><span class=syntax0> LIMIT </span><span class=syntax5>5</span><o:p></o:p></pre><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thank you again!<o:p></o:p></p><p class=MsoNormal><br>~ Sheara<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:gray;letter-spacing:1.0pt'>Sheara Cohen</span></b><span style='font-size:9.0pt;font-family:"Century Gothic","sans-serif"'><br></span><span style='font-size:7.5pt;font-family:"Century Gothic","sans-serif";font-variant:small-caps;color:gray;letter-spacing:1.4pt'>Planner</span><span style='letter-spacing:1.0pt'><o:p></o:p></span></p><p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><b><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:#E9935F'>C A L T H O R P E</span></b><b><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:gray'> A S S O C I A T E S</span></b><span style='font-size:10.0pt;font-family:"Century Gothic","sans-serif";color:gray'><br></span><span style='font-size:7.5pt;font-family:"Century Gothic","sans-serif";color:gray'>2095 ROSE STREET, SUITE 201, BERKELEY, CALIFORNIA, 94709 USA</span><span style='font-size:8.0pt;font-family:"Century Gothic","sans-serif"'><br></span><span style='font-size:7.5pt;font-family:"Century Gothic","sans-serif";color:gray'>510 809-1165 (direct) | 510-548-6800 x35 (main) | 510 548-6848 (fax)<br><a href="mailto:sheara@calthorpe.com"><span style='color:blue'>sheara@calthorpe.com</span></a> | <a href="www.calthorpe.com"><span style='color:blue'>www.calthorpe.com</span></a><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>