<div dir="ltr">Hello Luca,<div><br></div><div>for one-offs, there can be done on huge computer in Google Colab:</div><div><a href="https://colab.research.google.com/gist/Komzpa/fb24368a746854e53ebf79481dc24f18/postgis-on-colab.ipynb">https://colab.research.google.com/gist/Komzpa/fb24368a746854e53ebf79481dc24f18/postgis-on-colab.ipynb</a><br></div><div><br></div><div>Another thing to check is that if it is really a memory issue: you can't have intermediate results more that 1GB per value in Postgres, and if you, say, aggregate 130 MB and then take a buffer (x4x8 points = 4.1 GB) that may just not be calculable without splitting it upfront and writing a fancier query that does not hold it all in one value. Then your computer should be fine.</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, Jan 30, 2021 at 2:55 PM Nikolaos Ves <<a href="mailto:vesnikos@gmail.com">vesnikos@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="auto">Hi Luca, <div dir="auto"><br></div><div dir="auto">I might be able to help you with this,</div><div dir="auto"><br></div><div dir="auto">Sent me some details of your project and requirements, and let's see if we can move this forward</div><div dir="auto"><br></div><div dir="auto">Best,</div><div dir="auto">Nikos</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Sat, 30 Jan 2021, 11:44 Luca Bertoncello, <<a href="mailto:lucabert@lucabert.de" target="_blank">lucabert@lucabert.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hi list!<br>
<br>
It seems that the generating of an help table with some data for Europe<br>
need too much resources and the PC I use for that (4 cores and 16 GB<br>
RAM) doesn't have enough...<br>
<br>
The table is ~130MB and has ~108.000 entries, so not really big, but the<br>
"aggregation" with the PostGIS functions is too much for my old PC...<br>
<br>
Since this is for an opensource and free project, I don't want to buy a<br>
new PC with much RAM and cores (and > 500-600€ costs...) for a thing I<br>
need maybe once at year or even rarely...<br>
<br>
The question: do someone have a PC with more resources than mine and can<br>
help me aggregating this table?<br>
<br>
Thank you very much<br>
Luca Bertoncello<br>
(<a href="mailto:lucabert@lucabert.de" rel="noreferrer" target="_blank">lucabert@lucabert.de</a>)<br>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr">Darafei "Komяpa" Praliaskouski<br>OSM BY Team - <a href="http://openstreetmap.by/" target="_blank">http://openstreetmap.by/</a><br></div></div>