2.3. Configure Extension
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## 2.3. Configure Extension #

We assume you have already created a database userdb, where userdb is the name of any database. Assume that the name of PostgreSQL's superuser is `postgres`.

    shell> psql -U postgres -c 'CREATE EXTENSION pg_sphere' userdb

It may be necessary to give more `psql` options, like port or host name, depending on your system configuration. Please, take a look at the psql user manual for details. The psql user manual for the latest PostgreSQL version can be found at PostgreSQL site .

To get the version of installed pgSphere software:

    pgsql> SELECT pg_sphere_version();

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