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<p class=MsoNormal><font size=3 color=blue face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:blue'>My first reaction (without thinking too
much </span></font><font color=blue face=Wingdings><span style='font-family:
Wingdings;color:blue'>J</span></font><font color=blue face=Arial><span
style='font-family:Arial;color:blue'>) is that you will need to write a
PL/pgSQL procedure to do that.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:blue'>Worth<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 color=blue face=Arial><span style='font-size:
12.0pt;font-family:Arial;color:blue'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
postgis-users-bounces@lists.osgeo.org
[mailto:postgis-users-bounces@lists.osgeo.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Tyler Frazier<br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, March 22, 2013 7:20
PM<br>
<b><span style='font-weight:bold'>To:</span></b> postgis-users@lists.osgeo.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> [postgis-users] spatial
join and summarize, list all names</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Hello,<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I'm pretty new to postgreSQL / postGIS and am running with pgadmin and
using with QGIS and R.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I am attempting to perform a Spatial Join of 3000 thousand towns
(points) to 1000 enumeration areas (polygons) where the name of each town which
shares a common geometry with its enumeration area is included as an attribute
in a field. In doing so, I have started with the following command.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>SELECT towns_r1.name, towns_r1.twn_ea_nos, <o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>
ea_r1.gid, ea_r1.ea_nos, ea_r1.the_geom<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>INTO TABLE region1_eas<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>FROM towns_r1, ea_r1<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>WHERE ST_Within(towns_r1.the_geom, ea_r1.the_geom);<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>which gives me a table of 3000 enumerations areas, with the name of
each individual town and the geometry for each enumeration area repeated,
depending on how many towns were located within it.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>What I am attempting to achieve, is to summarize or aggregate to 1000
enumeration areas, where each row has a field (single field the names of all
towns listed within?), which includes the name of each town located within that
enumeration area.<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>any pointers on how to proceed?<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Thanks!<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Ty<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
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12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=4 color=black face=Helvetica><span
style='font-size:13.5pt;font-family:Helvetica;color:black'>Tyler Frazier,
Postdoctoral Fellow<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=4 color=black face=Helvetica><span
style='font-size:13.5pt;font-family:Helvetica;color:black'>Santa Fe Institute<o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=4 color=black face=Helvetica><span
style='font-size:13.5pt;font-family:Helvetica;color:black'><a
href="mailto:tyler@santafe.edu">tyler@santafe.edu</a><o:p></o:p></span></font></p>
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<p class=MsoNormal><font size=4 color=black face=Helvetica><span
style='font-size:13.5pt;font-family:Helvetica;color:black'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'></span><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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face="Times New Roman"><span style='font-size:12.0pt'>
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<p class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto'
color="#000000"><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>No virus found in this message.<br>
Checked by AVG - <a href="http://www.avg.com">www.avg.com</a><br>
Version: 2013.0.2904 / Virus Database: 2641/6195 - Release Date: 03/21/13<o:p></o:p></span></font></p>
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