Обсуждение: FDW to postGIS Database

Let say that I have a database named stp. I also have another database 
named geo that is a PostGIS database for storing geopolitical and 
geospatial data. I want to set up a foreign data wrapper in stp to 
connect to geo, so that for each address in stp, I only have to store 
the primary key value of the lowest level geo unit, such as a city. I 
can always display the city's county, state, country, whatever in views 
in stp. I plan to have other databases that need geo data so I want a 
single source of truth for geopolitical and geospatial data.

My questions are:
1. Do I have to install PostGIS in stp?....or is it sufficient to 
install PostGIS only in geo?
2. Do I need the postgis extension in stp?  (I'm thinking yes, but I 
don't want to guess.)
3. I want to geocode addresses in stp. Do I need to install any 
geocoding software in stp?...or can it be used from geo?

Thanks for your help!

Sue

-- 
--------------------------------------
Susan E Hurst
Email:  susan.hurst@brookhurstdata.com
Mobile: 314-486-3261

Thank you, Brent! You told me what I needed to know.

---
--------------------------------------
Susan E Hurst
Email:  susan.hurst@brookhurstdata.com
Mobile: 314-486-3261

On 2022-03-06 19:35, Brent Wood wrote:
> In line below...
> 
>  On Monday, March 7, 2022, 05:36:34 AM GMT+13, Susan Hurst
> <susan.hurst@brookhurstdata.com> wrote:
> 
> Let say that I have a database named stp. I also have another database
> 
> 
> named geo that is a PostGIS database for storing geopolitical and
> 
> geospatial data. I want to set up a foreign data wrapper in stp to
> 
> connect to geo, so that for each address in stp, I only have to store
> 
> the primary key value of the lowest level geo unit, such as a city. I
> 
> can always display the city's county, state, country, whatever in
> views
> 
> in stp. I plan to have other databases that need geo data so I want a
> 
> single source of truth for geopolitical and geospatial data.
> 
> My questions are:
> 
> 1. Do I have to install PostGIS in stp?....or is it sufficient to
> 
> install PostGIS only in geo?
> 
> If you want to use Postgis functions & datatypes in stp you will need
> Postgis there
> 
> 2. Do I need the postgis extension in stp?  (I'm thinking yes, but I
> 
> don't want to guess.)
> 
> Isn't this the same as (1) above? (Postgis is installed via "create
> extension postgis;")
> 
> 3. I want to geocode addresses in stp. Do I need to install any
> 
> geocoding software in stp?...or can it be used from geo?
> 
> If you can geocode in geo & access the resulting data via fdw in stp,
> you should not need geocoding tools in stp.
> If you need to access spatial data from geo in stp & geocode in stp,
> you will need the geocoding tools in stp.
> 
> Thanks for your help!
> 
> Sue
> 
> --
> 
> --------------------------------------
> 
> Susan E Hurst
> 
> Email:  susan.hurst@brookhurstdata.com
> 
> Mobile: 314-486-3261