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Hi everyone,<br>
<br>
I'm trying to make a quite simple query in Postgis but I have
problems with it. I just want to create a buffer dissolved of a set
of points. Only that.<br>
<br>
This is the query I'm using:<br>
<font face="monospace"><br>
SELECTÂ emt_paradas.id , ST_union(st_buffer(emt_paradas.geom,
500)) FROM emt_paradas </font><br>
<br>
but when I try to execute this, tells me the field <font
face="monospace">emt_paradas.id</font> must be in the clause <font
face="monospace">group by</font> but if I do that, the dissolve is
not done.<br>
<br>
I'm in the DBManager of QGIS 2.6. I want to create this layer and
load it in the canvas, for that DBManager asks me for an ID field,
that's why I added <font face="monospace">emt_paradas.id</font> in
the select. If i remove it, Postgis creates the geometrybut I can't
load it in the canvas.<br>
<br>
Any help or guidance will be apreciate. <br>
<br>
Thanks a lot!!<br>
<br>
<br>
<br>
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