PostgreSQL PostGIS

How to installare e configurare PostgreSQL e PostGIS su Xubuntu/Ubuntu 11.10 In particolare questa guida fa riferimento alle versioni: PostgreSQL 9.1 PgAdmin3 1.12.3 PostGIS 1.5.3-1

• Installare PostgrSQL:

   -sudo apt-get install postgresql

• Editare /etc/postgresql/9.1/main/pg_hba.conf in modo che ci sia trust:

   # Database administrative login by Unix domain socket
   local   all             postgres                                trust

   # TYPE  DATABASE        USER            ADDRESS                 METHOD
   
   # "local" is for Unix domain socket connections only
   local   all             all                                     trust
   # IPv4 local connections:
   host    all             all             127.0.0.1/32            md5
   # IPv6 local connections:
   host    all             all             ::1/128                 md5
   # Allow replication connections from localhost, by a user with the
   # replication privilege.
   #local   replication     postgres                                peer
   #host    replication     postgres        127.0.0.1/32            md5
   #host    replication     postgres        ::1/128                 md5

• Restartare PostgreSQL

   -sudo service postgresql restart

• Verificare che PostgreSQL funzioni, loggandosi:

   -psql -U postgres

uscire con il comando: \q

• Installare PgAdmin3

   -sudo apt-get install pgadmin3

• Installare PostGIS

   -sudo apt-get install postgresql-9.1-postgis

• Creare link simbolico a shp2pgsql. Servirà per importare i file .shp in PostgreSQL

   -sudo ln -s /usr/lib/postgresql/9.1/bin/shp2pgsql-gui /usr/bin/shp2pgsql-gui

Modificare (o creare se assente) il file plugins.ini come segue. Se state usando pgadmin3 1.14.0, il file dovrebbe andar messo in /usr/share/pgadmin3/plugins.d/ le versioni inferiori lo mettono in /usr/share/pgadmin3/:

   ;
   ; pgShapeLoader (Linux):
   ;
   Title=PostGIS Shapefile and DBF loader
   Command=$$PGBINDIR/shp2pgsql-gui -U $$USERNAME -d $$DATABASE -p $$PORT -h $$HOSTNAME
   Description=Open a PostGIS ESRI Shapefile or Plain dbf loader console to the current database.
   KeyFile=$$PGBINDIR/shp2pgsql-gui
   Platform=unix
   ServerType=postgresql
   Database=Yes
   SetPassword=No

In questo modo avrete l'estensione grafica per integrare i file .shp integrata in PgAdmin3

• Comandi per creare un database geografico:

   -createdb -U postgres postgisDB
   -createlang -U postgres plpgsql postgisDB
   -psql -U postgres -d postgisDB -f /usr/share/postgresql/9.1/contrib/postgis-1.5/postgis.sql

D'ora in avanti si può continuare ad usare PgAdmin.