<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Hi I'm andrea. I'm new in pgrouting, postgis and similar. I was following this useful guide <a href="http://goo.gl/FuIiF">http://goo.gl/FuIiF</a> to create a network topology. However when I try to execute the command<div><span class="Apple-style-span" style="font-family: Verdana, Arial, 'Bitstream Vera Sans', Helvetica, sans-serif; font-size: 13px; "><pre class="wiki" style="background-image: initial; background-attachment: initial; background-origin: initial; background-clip: initial; background-color: rgb(247, 247, 247); border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-top-style: solid; border-right-style: solid; border-bottom-style: solid; border-left-style: solid; border-top-color: rgb(215, 215, 215); border-right-color: rgb(215, 215, 215); border-bottom-color: rgb(215, 215, 215); border-left-color: rgb(215, 215, 215); margin-top: 1em; margin-right: 1.75em; margin-bottom: 1em; margin-left: 1.75em; padding-top: 0.25em; padding-right: 0.25em; padding-bottom: 0.25em; padding-left: 0.25em; overflow-x: auto; overflow-y: auto; ">assign_vertex_id('<table>', float tolerance, '<geometry column', '<gid>')</pre></span><div><div>to my table, I have this response:</div></div><div><br></div><div><div><b>NOTICE: CREATE TABLE will create implicit sequence "vertices_tmp_id_seq" for serial column "vertices_tmp.id"</b></div><div><b>CONTEXT: SQL statement "CREATE TABLE vertices_tmp (id serial)"</b></div><div><b>PL/pgSQL function "assign_vertex_id" line 14 at EXECUTE statement</b></div><div><b>ERROR: query string argument of EXECUTE is null</b></div><div><b>CONTEXT: PL/pgSQL function "assign_vertex_id" line 35 at EXECUTE statement</b></div></div><div><b><br></b></div><div>Do anyone know what's the problem?</div><div>(sorry for my bad english)</div></div><div>
<span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; "><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div><br class="Apple-interchange-newline">_____________________</div></div><div><br></div><div>zEuSsE</div><div>e.mail: <a href="mailto:zeusxxl@virgilio.it">zeusxxl@virgilio.it</a></div><div><br></div></div></span><br class="Apple-interchange-newline"></span><br class="Apple-interchange-newline"></span>
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