79 lines
6.9 KiB
Markdown
79 lines
6.9 KiB
Markdown
Named places geocoder
|
|
===============
|
|
|
|
# Function
|
|
|
|
````
|
|
SELECT (geocode_namedplace(Array['sunapee', 'sunapeeee', 'New York City'], 'USA')).*
|
|
`````
|
|
|
|
# Source table structure
|
|
|
|
**global_cities_points_limited**
|
|
````
|
|
Table "public.global_cities_points_limited"
|
|
Column | Type | Modifiers | Storage | Stats target | Description
|
|
----------------------+--------------------------+-----------------------------------------------------------------------+----------+--------------+-------------
|
|
geoname_id | double precision | | plain | |
|
|
name | text | | extended | |
|
|
asciiname | text | | extended | |
|
|
altnames | text | | extended | |
|
|
featclass | text | | extended | |
|
|
featcode | text | | extended | |
|
|
iso2 | text | | extended | |
|
|
cc2 | text | | extended | |
|
|
admin1 | text | | extended | |
|
|
admin2 | text | | extended | |
|
|
admin3 | text | | extended | |
|
|
admin4 | text | | extended | |
|
|
population | double precision | | plain | |
|
|
gtopo30 | integer | | plain | |
|
|
the_geom | geometry(Point,4326) | | main | |
|
|
created_at | timestamp with time zone | not null default now() | plain | |
|
|
updated_at | timestamp with time zone | not null default now() | plain | |
|
|
the_geom_webmercator | geometry(Geometry,3857) | | main | |
|
|
cartodb_id | integer | not null default nextval('points_cities_le_cartodb_id_seq'::regclass) | plain | |
|
|
lowername | text | | extended | |
|
|
|
|
````
|
|
|
|
**global_cities_alternates_limited**
|
|
````
|
|
Table "public.global_cities_alternates_limited"
|
|
Column | Type | Modifiers | Storage | Stats target | Description
|
|
----------------------+--------------------------+---------------------------------------------------------------------------------------+----------+--------------+-------------
|
|
geoname_id | integer | | plain | |
|
|
name | text | | extended | |
|
|
the_geom | geometry(Geometry,4326) | | main | |
|
|
created_at | timestamp with time zone | not null default now() | plain | |
|
|
updated_at | timestamp with time zone | not null default now() | plain | |
|
|
the_geom_webmercator | geometry(Geometry,3857) | | main | |
|
|
preferred | boolean | | plain | |
|
|
lowername | text | | extended | |
|
|
cartodb_id | integer | not null default nextval('global_cities_alternates_limited_cartodb_id_seq'::regclass) | plain | |
|
|
admin1_geonameid | integer | | plain | |
|
|
iso2 | text | | extended | |
|
|
admin1 | text | | extended | |
|
|
|
|
````
|
|
|
|
# Creation steps
|
|
1. Upload the allCountries and alternateNames tables
|
|
2. Generate the `global_cities_points_limited` and `global_cities_alternates_limited` tables
|
|
3. Run the `sql/build_data_table.sql` script to build the `global_cities_points_limited` table
|
|
|
|
**Note**: The generation script for `global_cities_alternates_limited` is missing.
|
|
|
|
# Data Sources
|
|
|
|
* Geonames free gazzeter data. `allCountries.zip` file available [here](http://download.geonames.org/export/dump/allCountries.zip). `alternateNames.zip` file available [here](http://download.geonames.org/export/dump/alternateNames.zip).
|
|
|
|
# Testing
|
|
In order to test the data and the functions created under the script avaialble in this folder, you will need to run `bash test.sh` from `test/data` and `test/functions`.
|
|
|
|
# Historic:
|
|
* [23/06/2015]:
|
|
* `README.md` file generated
|
|
* Added structure for `/test`
|
|
|