I managed to entertain myself with a Conway's game of life PostGIS raster Map algebra style and pondered how wonderful PostGIS would be if it could generate animated gifs with some sort of aggregate function; to which I was politely called crazy by some of my fellow PSC friends.
But what was greatest of all and took the cake were these pictures:
A while back, we discussed using pgAdmin pgScript as a quicky way for
running a repetitive update script where you want each loop to commit right away. Since stored functions have to commit as a whole, you can't use stored functions alone for this kind of processing.
If you are using the psql client packaged with PostgreSQL 9.3 or above,
then you can take advantage of the \watch command that was introduced in that version of psql. We'll demonstrate that
by doing a batch geocoding exercise with PostGIS tiger geocoder and also revise our example from the prior article to use the more efficient and terser LATERAL construct introduced in PostgreSQL 9.3.
PostgreSQL 9.4beta1 was released last week and windows binaries for both 32-bit and 64-bit are already available to try it out from http://www.postgresql.org/download/windows. Since this is a beta release, there are no installers yet, just the zip binary archive.
To make the pot a little sweeter, we've setup the PostGIS windows build bot (Winnie) to automatically build for 9.4 - PostGIS 2.2.0 development branch and pgRouting 2 branches whenever there is a change in the code. We also have the pointcloud extension in the extras folder. If you are on 9.3, we've got 2.2 binaries for that as well. The PostGIS/pgRouting related stuff you can find at http://postgis.net/windows_downloads in the 9.4 folder.
For the rest of this article we'll discuss a couple of stumbling blocks you may run into.
Much of what we'll describe here is windows specific, but thanks to the beauty of extensions and GUCs, the extension install and GUC setting part for PostGIS is applicable to all operating systems.