PostGIS db help and manual in different languages

To use them, extract the files and from psql or pgAdmin, run the sql scripts. To experiment to see how this all looks I did the following.

CREATE EXTENSION postgis;
CREATE EXTENSION postgis_topology;

If you look in pgAdmin and navigate to topology schema, you'll see help that looks like:

If English is not your native language, you might want to install one of the other language packs.

I picked postgis_topology for this demonstration because it's self-contained and doesn't have a behemoth number of functions. You'll probably want to just use postgis_comments.sql and raster_comments.sql files.

First extracting the Japanese pack and running the topology_comments.sql

If you look in pgAdmin after script run and navigate to topology schema, refresh -> Functions -> Properties, You'll see something like this:

The German one would look like

Note that while I'm showing this in pgAdmin, you can see the help in many tools including psql.