Hello, I am a Postgres DBA, new to PostGIS, working at a company that uses PostGIS. I am building a new database using PostgreSQL 9.4 and PostGIS 2.1.
My question: Previously the databases here have been built by installing the PostgreSQL and PostGIS packages, and then running the postgis.sql and spatial_ref_sys.sql scripts provided by the install. I am experimenting with installing PostGIS via extensions only. To test, I installed two databases using PostgreSQL 9.4, one the old way of installing the packages and running the scripts, and one with the packages and using the postgis, postgis_tiger_geocoder, and postgis_topology extensions – both were into a newly created template_gis database. The issue is I do not believe I have installed everything that needs to be installed. Building the database using the first method yielded an install with 3258 functions owned by postgres user. Using the extensions approach I have only 2685. There may be more items missing – this is all I compared before searching for information on the internet. From the extensions portion of the manual, it only mentioned using postgis and postgis_topology (with tiger geocoder appearing to be an “extra”). Please forgive the crude comparisons done. Any input on what I am missing, or if the lesser number of functions is “normal” would be appreciated. Sincerely, Andy Yoder
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