7.2 KiB
7.2 KiB
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
- Upload the allCountries and alternateNames tables
- Generate the
global_cities_points_limitedandglobal_cities_alternates_limitedtables - Run the
sql/build_data_table.sqlscript to build theglobal_cities_points_limitedtable
Note: The generation script for global_cities_alternates_limited is missing.
Data Sources
- Geonames free gazzeter data.
allCountries.zipfile available here.alternateNames.zipfile available here.
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.
Known issues
- Admin1 column with null rows doesn't return a result: https://github.com/CartoDB/data-services/issues/147
- The geocoding function is using a deprecated table:
admin1_decoderinstead of the newadmin1_synonyms. Related issue: https://github.com/CartoDB/data-services/issues/148
Historic:
- [24/06/2015]:
- Added section "Known issues"
- [23/06/2015]:
README.mdfile generated- Added structure for
/test