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PostgreSQL is an open source object-relational database system.

26 votes
3 answers
18k views

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. …
Rémi B.'s user avatar
  • 1,133
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 …
Rémi B.'s user avatar
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