You can have more then one version of QGIS installed. I've had three versions installed at the same time.<br><br>You should be able to simply uninstall what's there, and delete the install folder.<br><br>- John<br>
<br><br><br><div class="gmail_quote">On Mon, Jul 18, 2011 at 8:47 PM, Vishal Mehta <span dir="ltr"><<a href="mailto:vishal.mehta@sei-us.org">vishal.mehta@sei-us.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div link="blue" vlink="purple" lang="EN-US"><div><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Thanks John,<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">I can try installing QGIS 1.7 and try loading postgis2.0 layer it again. Do I need to uninstall QGIS1.6 as well as the GRASS installations it came with first? <u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">(I had used the stand alone installer that included GRASS earlier, but don’t seem to have an uninstall option for all of them together..unless I am missing something)<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D">Vishal<u></u><u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><u></u> <u></u></span></p><p class="MsoNormal"><span style="font-size:11.0pt;color:#1F497D"><u></u> <u></u></span></p><p class="MsoNormal"><b><span style="font-size:10.0pt">From:</span></b><span style="font-size:10.0pt"> John Callahan [mailto:<a href="mailto:john.callahan@udel.edu" target="_blank">john.callahan@udel.edu</a>] <br>
<b>Sent:</b> Monday, July 18, 2011 5:22 PM<br><b>To:</b> Vishal Mehta<br><b>Cc:</b> <a href="mailto:qgis-user@lists.osgeo.org" target="_blank">qgis-user@lists.osgeo.org</a><br><b>Subject:</b> Re: [Qgis-user] trouble adding postgis(2.0) layer to qgis(1.6)<u></u><u></u></span></p>
<div><div></div><div class="h5"><p class="MsoNormal"><u></u> <u></u></p><p class="MsoNormal" style="margin-bottom:12.0pt">I do not believe PG 2.0 is supported in QGIS 1.6. I had a similar error when I had tried. It does work well using QGIS 1.7 or greater.<br>
<br>- John<br><br><br><u></u><u></u></p><div><p class="MsoNormal">On Mon, Jul 18, 2011 at 7:45 PM, Vishal Mehta <<a href="mailto:vishal.mehta@sei-us.org" target="_blank">vishal.mehta@sei-us.org</a>> wrote:<u></u><u></u></p>
<div><div><p class="MsoNormal">Hi all,<u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">I’m using Quantum GIS 1.6.0, <u></u><u></u></p><p class="MsoNormal">Postgresql 9.0 and <u></u><u></u></p>
<p class="MsoNormal">Postgis 2.0 (dev version)<u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">On Windows 7.<u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">I’m having trouble adding a Postgis layer to QGIS. I loaded a shapefile into my database separately using the shapefile loader and that seemed to woork fine. However when I try to bring it into QGIS I get the following error:<u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in"><i>1 cursor states lost.</i><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in"><i>SQL: declare qgisf1 binary cursor for select "gid",asbinary("geom",'NDR') from "public"."wardscleanattributes" where "geom" && setsrid('BOX3D(-1.2547169811320755 -1.0000000000000000, 1.2547169811320755 1.0000000000000000)'::box3d,-1)</i><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in"><i>Result: 7 (ERROR: function asbinary(geometry, unknown) does not exist</i><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in"><i>LINE 1: declare qgisf1 binary cursor for select "gid",asbinary("geom...</i><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in"><i>^</i><u></u><u></u></p><p class="MsoNormal" style="margin-left:.5in"><i>HINT: No function matches the given name and argument types. You might need to add explicit type casts.</i><u></u><u></u></p>
<p class="MsoNormal" style="margin-left:.5in"><i>)</i><u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">The layer has a gist index, as well as a serial, primary key column.<u></u><u></u></p><p class="MsoNormal">
The same procedure used to work fine with<u></u><u></u></p><p class="MsoNormal">QGIS 1.0.2 – postgresql 8.3 and postgis 1.5<u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal">Help?<u></u><u></u></p>
<p class="MsoNormal">Vishal<u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p><p class="MsoNormal"> <u></u><u></u></p></div></div><p class="MsoNormal" style="margin-bottom:12.0pt">
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</div><p class="MsoNormal"><u></u> <u></u></p></div></div></div></div></blockquote></div><br>