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<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Myriad Pro","sans-serif";
color:#0F243E'>Hi Emilie,<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Myriad Pro","sans-serif";
color:#0F243E'><o:p> </o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Myriad Pro","sans-serif";
color:#0F243E'>Im trying to port over to npgsql but I cannot get the GeomFromWKB
function to get called correctly. No matter what I do with the wkb parameter the
query failes (error near \”,\”). Any hints?<o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Myriad Pro","sans-serif";
color:#0F243E'><o:p> </o:p></span></p>
<p class=MsoNormal style='background:#BFBFBF;text-autospace:none'><span
lang=EN-US style='font-size:9.0pt;font-family:"Envy Code R VS";background:silver;
mso-highlight:silver'> <span style='color:#400080'>const</span> <span
style='color:#400080'>string</span> <span style='color:#010001'>sql</span> <span
style='color:#2E53D1'>=</span> <b><span style='color:#259241'>"INSERT INTO
table ("</span></b><span style='color:#259241'><o:p></o:p></span></span></p>
<p class=MsoNormal style='background:#BFBFBF;text-autospace:none'><span
lang=EN-US style='font-size:9.0pt;font-family:"Envy Code R VS";background:silver;
mso-highlight:silver'> <span
style='color:#2E53D1'>+</span> <b><span style='color:#259241'>"client,
category, description, geom)"</span></b><span style='color:#259241'><o:p></o:p></span></span></p>
<p class=MsoNormal style='background:#BFBFBF;text-autospace:none'><span
lang=EN-US style='font-size:9.0pt;font-family:"Envy Code R VS";background:silver;
mso-highlight:silver'> <span
style='color:#2E53D1'>+</span> <b><span style='color:#259241'>" VALUES (?,
?, ?, GeomFromWKB(?, 4326)) RETURNING id"</span></b>;<o:p></o:p></span></p>
<p class=MsoNormal style='background:#BFBFBF;text-autospace:none'><span
lang=EN-US style='font-size:9.0pt;font-family:"Envy Code R VS";background:silver;
mso-highlight:silver'><o:p> </o:p></span></p>
<p class=MsoNormal style='background:#BFBFBF;text-autospace:none'><span
lang=EN-US style='font-size:9.0pt;font-family:"Envy Code R VS";background:silver;
mso-highlight:silver'> <span style='color:#010001'>cmd</span> <span
style='color:#2E53D1'>=</span> <span style='color:#400080'>new</span> <span
style='color:#305FB6'>NpgsqlCommand</span>(<span style='color:#010001'>sql</span>,
<span style='color:#010001'>conn</span>);<o:p></o:p></span></p>
<p class=MsoNormal style='background:#BFBFBF;text-autospace:none'><span
lang=EN-US style='font-size:9.0pt;font-family:"Envy Code R VS";background:silver;
mso-highlight:silver'> <span style='color:#010001'>cmd</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>Parameters</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>Add</span>(<span
style='color:#400080'>string</span><span style='color:#2E53D1'>.</span><span
style='color:#010001'>Empty</span>, <span style='color:#010001'>request</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>ClientId</span>);<o:p></o:p></span></p>
<p class=MsoNormal style='background:#BFBFBF;text-autospace:none'><span
lang=EN-US style='font-size:9.0pt;font-family:"Envy Code R VS";background:silver;
mso-highlight:silver'> <span style='color:#010001'>cmd</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>Parameters</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>Add</span>(<span
style='color:#400080'>string</span><span style='color:#2E53D1'>.</span><span
style='color:#010001'>Empty</span>, <span style='color:#010001'>request</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>CategoryId</span>);<o:p></o:p></span></p>
<p class=MsoNormal style='background:#BFBFBF;text-autospace:none'><span
lang=EN-US style='font-size:9.0pt;font-family:"Envy Code R VS";background:silver;
mso-highlight:silver'> <span style='color:#010001'>cmd</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>Parameters</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>Add</span>(<span
style='color:#400080'>string</span><span style='color:#2E53D1'>.</span><span
style='color:#010001'>Empty</span>, <span style='color:#010001'>request</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>Description</span>);<o:p></o:p></span></p>
<p class=MsoNormal style='background:#BFBFBF;text-autospace:none'><span
lang=EN-US style='font-size:9.0pt;font-family:"Envy Code R VS";background:silver;
mso-highlight:silver'> <span style='color:#400080'>byte</span>[]
<span style='color:#010001'>bytes</span> <span style='color:#2E53D1'>=</span> <span
style='color:#010001'>GetWkbPolygon</span>(<span style='color:#010001'>request</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>Points</span>);<o:p></o:p></span></p>
<p class=MsoNormal style='background:#BFBFBF;text-autospace:none'><span
lang=EN-US style='font-size:9.0pt;font-family:"Envy Code R VS";background:silver;
mso-highlight:silver'> <span style='color:#010001'>cmd</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>Parameters</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>Add</span>(<span
style='color:#400080'>new</span> <span style='color:#305FB6'>NpgsqlParameter</span>(<span
style='color:#400080'>string</span><span style='color:#2E53D1'>.</span><span
style='color:#010001'>Empty</span>, <span style='color:#010001'>bytes</span>));<o:p></o:p></span></p>
<p class=MsoNormal style='background:#BFBFBF'><span lang=EN-US
style='font-size:9.0pt;font-family:"Envy Code R VS";background:silver;
mso-highlight:silver'> <span style='color:#400080'>int</span> <span
style='color:#010001'>id</span> <span style='color:#2E53D1'>=</span> (<span
style='color:#400080'>int</span>)<span style='color:#010001'>cmd</span><span
style='color:#2E53D1'>.</span><span style='color:#010001'>ExecuteScalar</span>();</span><span
lang=EN-US style='font-size:10.0pt;font-family:"Myriad Pro","sans-serif";
color:#0F243E'><o:p></o:p></span></p>
<p class=MsoNormal><span lang=EN-US style='font-size:10.0pt;font-family:"Myriad Pro","sans-serif";
color:#0F243E'><o:p> </o:p></span></p>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'>
<p class=MsoNormal><b><span lang=EN-US style='font-size:10.0pt;font-family:
"Tahoma","sans-serif"'>From:</span></b><span lang=EN-US style='font-size:10.0pt;
font-family:"Tahoma","sans-serif"'>
postgis-users-bounces@postgis.refractions.net
[mailto:postgis-users-bounces@postgis.refractions.net] <b>On Behalf Of </b>Emilie
Laffray<br>
<b>Sent:</b> Friday, December 11, 2009 1:13 PM<br>
<b>To:</b> PostGIS Users Discussion<br>
<b>Subject:</b> Re: [postgis-users] Weird GEOS problem<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><o:p> </o:p></p>
<div>
<p class=MsoNormal>2009/12/11 George Vlahakis <<a
href="mailto:g.vlahakis@telenavis.com">g.vlahakis@telenavis.com</a>><o:p></o:p></p>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt'>Hi all,</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt'> </span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt'>Probably nobody has seen this, but on a
particular machine (Win XP) every 2-3 hours or so I am getting the following
error:</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt'> </span><o:p></o:p></p>
<p><span lang=EN-US>System.Data.Odbc.OdbcException: ERROR [XX000] ERROR: Error
creating GEOS Coordinate Sequence; Error while executing the query</span><o:p></o:p></p>
<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'><span
lang=EN-US style='font-size:10.0pt'> </span><o:p></o:p></p>
</div>
</div>
</div>
<p class=MsoNormal>I might be wrong but you are using .NET? <br>
If it is indeed the case, I would suggest dropping the use of odbc, and use
npgsql which provides a direct connection to the database. It should give you
better performance, and maybe extra stability.<br>
<br>
Emilie Laffray<o:p></o:p></p>
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