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modified note in postal geocoder docs, content only

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csobier
2017-06-28 14:18:02 -04:00
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NEWS.md
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June 28th, 2017
=============
* Not version specific, content change only
* Removed link to /docs/faqs and enhanced ZCTA note directly in the Postal Coder docs.
May 26th, 2017
=============
* Version `0.24.2` of the server

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doc/geocoding_functions.md
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@@ -217,7 +217,7 @@ INSERT INTO {tablename} (the_geom) SELECT cdb_geocode_namedplace_point('New York
These functions geocode your data into point, or polygon, geometries for postal codes. The postal code geocoder covers the United States, France, Australia and Canada; a request for a different country will return an empty response.
**Note:** For the USA, US Census [Zip Code Tabulation Areas](https://www.census.gov/geo/reference/zctas.html) (ZCTA) are used to reference geocodes for USPS postal codes service areas. See the [FAQs](https://carto.com/docs/faqs/datasets-and-data/#why-does-carto-use-census-bureau-zctas-and-not-usps-zip-codes-for-postal-codes) about datasets and data for details.
**Note:** For the USA, US Census Zip Code Tabulation Areas (ZCTA) are used to reference geocodes for USPS postal codes service areas. This is not a CARTO restriction, this is a US Government licensing protection of their zip code data source; which is not publicly available. Additionally, zip codes are considered service areas and are not actually geometric areas. As a solution, the US Census provides ZCTA data, which tabulates GIS postal codes for USPS locations by aggregating census blocks. For details about how ZCTAs are created, see [ZIP Code™ Tabulation Areas (ZCTAs™)](https://www.census.gov/geo/reference/zctas.html). If you are geocoding data and your zip codes fail, ensure you are using ZCTAs for the postal code.
### cdb_geocode_postalcode_polygon(_postal_code text, country_name text_)