<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<!--[if !mso]><style>v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style><![endif]--><style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
@font-face
{font-family:"Segoe UI Emoji";
panose-1:2 11 5 2 4 2 4 2 2 3;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-US" link="blue" vlink="purple" style="word-wrap:break-word">
<div class="WordSection1">
<p class="MsoNormal"><span style="font-size:12.0pt;color:#1F497D">That did it!!! I was unware that GeoPackage’s are SUPER fast and that I could SAVE a CSV as a GeoPackage file. . There is no metho to create indexes though once I do this, but now it runs in
about 2 min! lol <o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;color:#1F497D"><img width="112" height="32" style="width:1.1666in;height:.3333in" id="Picture_x0020_2" src="cid:image001.png@01D8C447.4202EE00" alt="LTI-Full_175px"></span></b><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;color:#1F497D">Dennis Burgess<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;color:#1F497D"><br>
</span></b><span style="font-size:10.0pt;color:#1F497D">Author of "Learn RouterOS- Second Edition”
</span><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;color:#1F497D">Link Technologies, Inc</span></b><span style="font-size:10.0pt;color:#1F497D"> -- Mikrotik & WISP Support Services
</span><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><b><span style="font-size:10.0pt;color:#1F497D">Office</span></b><span style="font-size:10.0pt;color:#1F497D">: 314-735-0270 Website:
</span><span style="color:#1F497D"><a href="http://www.linktechs.net/"><span style="font-size:10.0pt">http://www.linktechs.net</span></a></span><span style="font-size:10.0pt;color:#1F497D">
</span><span style="color:#1F497D"><o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;color:#1F497D">Create Wireless Coverage’s with
</span><span style="color:#1F497D"><a href="www.towercoverage.com"><span style="font-size:10.0pt">www.towercoverage.com</span></a></span><span style="font-size:10.0pt;color:#1F497D">
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-autospace:none"><span style="font-size:10.0pt;color:#1F497D">Need MikroTik Cloud Management:
<a href="https://cloud.linktechs.net"><span style="color:#0563C1">https://cloud.linktechs.net</span></a>
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:12.0pt;color:#1F497D"><o:p> </o:p></span></p>
<div style="border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b>From:</b> Alexandre Neto <senhor.neto@gmail.com> <br>
<b>Sent:</b> Friday, September 9, 2022 12:20 PM<br>
<b>To:</b> Dennis Burgess <dmburgess@linktechs.net><br>
<b>Cc:</b> Raymond Nijssen <r.nijssen@terglobo.nl>; QGIS User <qgis-user@lists.osgeo.org><br>
<b>Subject:</b> Re: [Qgis-user] Faster Intersects<o:p></o:p></p>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<p class="MsoNormal">Following raymond advice,<o:p></o:p></p>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Move the CSV to a shapefile or geopackage and run the create spatial index on it.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">If you have very complex polygons, use suvdivide to create smaller ones save it in shapefile or geopackage and run create spatial index on it.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><a href="https://docs.qgis.org/3.22/en/docs/user_manual/processing_algs/qgis/vectorgeometry.html#subdivide">https://docs.qgis.org/3.22/en/docs/user_manual/processing_algs/qgis/vectorgeometry.html#subdivide</a><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">I would try with a smaller subset of points to test the improvement speed before trying to run on the full dataset again.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Answering your question, yes I am pretty sure postgis is much faster than mssql, and yes I think most recent versions of PostgreSQL PostGIS make use of more than one core.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Good luck<o:p></o:p></p>
</div>
</div>
<p class="MsoNormal"><o:p> </o:p></p>
<div>
<div>
<p class="MsoNormal">A sexta, 9/09/2022, 17:59, Dennis Burgess via Qgis-user <<a href="mailto:qgis-user@lists.osgeo.org" target="_blank">qgis-user@lists.osgeo.org</a>> escreveu:<o:p></o:p></p>
</div>
<blockquote style="border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in 6.0pt;margin-left:4.8pt;margin-right:0in">
<p class="MsoNormal">In the format, are you talking about the shape or the CSV with 2million lines?
<br>
<br>
<br>
<br>
Dennis Burgess<br>
<br>
Author of "Learn RouterOS- Second Edition” <br>
Link Technologies, Inc -- Mikrotik & WISP Support Services <br>
Office: 314-735-0270 Website: <a href="http://www.linktechs.net" target="_blank">
http://www.linktechs.net</a> <br>
Create Wireless Coverage’s with <a href="http://www.towercoverage.com" target="_blank">
www.towercoverage.com</a> <br>
Need MikroTik Cloud Management: <a href="https://cloud.linktechs.net" target="_blank">
https://cloud.linktechs.net</a> <br>
<br>
-----Original Message-----<br>
From: Qgis-user <<a href="mailto:qgis-user-bounces@lists.osgeo.org" target="_blank">qgis-user-bounces@lists.osgeo.org</a>> On Behalf Of Raymond Nijssen via Qgis-user<br>
Sent: Friday, September 9, 2022 11:11 AM<br>
To: <a href="mailto:qgis-user@lists.osgeo.org" target="_blank">qgis-user@lists.osgeo.org</a><br>
Subject: Re: [Qgis-user] Faster Intersects<br>
<br>
Some things to check:<br>
<br>
* Is your data local?<br>
* Is it in a fast file format? (for example .gpkg or .shp and not .csv or .geojson)<br>
* Does the data have a spatial index?<br>
* Is the geometry very complicated, like a huge multi polygon with thousands of vertices and islands? In that case, split it up in several polygons.<br>
<br>
Hope this helps. Anyway, it should not need to take this long.<br>
<br>
Raymond<br>
<br>
<br>
<br>
On 09-09-2022 16:28, Dennis Burgess via Qgis-user wrote:<br>
> How can I speed up Intersects? Right now I have a single geometry <br>
> file, but then have about 2 million points that I need to understand <br>
> what intersects that geometry. Right now its taking 3 days? <br>
> QGIS-bin.exe is only using 11% CPU.. <span style="font-family:"Segoe UI Emoji",sans-serif">
☹</span><br>
> <br>
> Dennis<br>
> <br>
> <br>
> _______________________________________________<br>
> Qgis-user mailing list<br>
> <a href="mailto:Qgis-user@lists.osgeo.org" target="_blank">Qgis-user@lists.osgeo.org</a><br>
> List info: <a href="https://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">
https://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
> Unsubscribe: <a href="https://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">
https://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
_______________________________________________<br>
Qgis-user mailing list<br>
<a href="mailto:Qgis-user@lists.osgeo.org" target="_blank">Qgis-user@lists.osgeo.org</a><br>
List info: <a href="https://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">
https://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
Unsubscribe: <a href="https://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">
https://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
_______________________________________________<br>
Qgis-user mailing list<br>
<a href="mailto:Qgis-user@lists.osgeo.org" target="_blank">Qgis-user@lists.osgeo.org</a><br>
List info: <a href="https://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">
https://lists.osgeo.org/mailman/listinfo/qgis-user</a><br>
Unsubscribe: <a href="https://lists.osgeo.org/mailman/listinfo/qgis-user" target="_blank">
https://lists.osgeo.org/mailman/listinfo/qgis-user</a><o:p></o:p></p>
</blockquote>
</div>
</div>
</body>
</html>