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PostgreSQL is an open source object-relational database system.
26
votes
3
answers
18k
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How to get the centroid of a set of points in PostGIS?
I use PostgreSQL with the PostGIS extension.
I have a set of points in the_geom column from a table myschema.myobjects. …
77
votes
Running Create Extension postgis gives ERROR could not open extension control file?
- Geographic objects support for PostgreSQL -- documentation
i postgresql-9.3-postgis-2.1 - Geographic objects support for PostgreSQL 9.3
p postgresql-9.3-postgis … -2.1:i386 - Geographic objects support for PostgreSQL 9.3
i postgresql-9.3-postgis-2.1-scripts - PostGIS for PostgreSQL 9.3 -- scripts -- dummy package …